diff --git a/docs/_includes/sidebar.html b/docs/_includes/sidebar.html
index a66e3676e..99d609ebe 100644
--- a/docs/_includes/sidebar.html
+++ b/docs/_includes/sidebar.html
@@ -15,7 +15,7 @@
             {%- endif -%}
           {%- endfor %}
 
-          <li class="nav-item{% if item.subitems %} has-treeview{% endif %}{% if subitem_active == 'true' %} menu-open{% endif %}">
+          <li class="nav-item{% if subitem_active == 'true' %} menu-open{% endif %}">
             {% if item.url == 'index.html' -%}
               {%- assign item_url = '/' -%}
             {%- else -%}
diff --git a/docs/components/main-sidebar.md b/docs/components/main-sidebar.md
index def74ff42..372c698e5 100644
--- a/docs/components/main-sidebar.md
+++ b/docs/components/main-sidebar.md
@@ -32,7 +32,7 @@ The sidebar used in this page to the left provides an example of what your sideb
       <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu">
         <!-- Add icons to the links using the .nav-icon class
              with font-awesome or any other icon font library -->
-        <li class="nav-item has-treeview menu-open">
+        <li class="nav-item menu-open">
           <a href="#" class="nav-link active">
             <i class="nav-icon fas fa-tachometer-alt"></i>
             <p>
diff --git a/docs/upgrade-guide.md b/docs/upgrade-guide.md
index 6fe0d43fb..553252ade 100644
--- a/docs/upgrade-guide.md
+++ b/docs/upgrade-guide.md
@@ -102,7 +102,7 @@ Old sample entry (with tree menu)
   <div class="col-md-6" markdown="1">
 New sample entry (with tree menu)
 ```html
-<li class="nav-item has-treeview">
+<li class="nav-item">
   <a href="#" class="nav-link">
     <i class="nav-icon fas fa-tachometer-alt"></i>
     <p>
diff --git a/index.html b/index.html
index 949f37b7e..8acea3b23 100644
--- a/index.html
+++ b/index.html
@@ -194,7 +194,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -232,7 +232,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -292,7 +292,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -321,7 +321,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -380,7 +380,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -415,7 +415,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -462,7 +462,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -491,7 +491,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -550,7 +550,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -647,7 +647,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -662,7 +662,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/index2.html b/index2.html
index e7ec671a2..fd421d8c9 100644
--- a/index2.html
+++ b/index2.html
@@ -181,7 +181,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -219,7 +219,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -279,7 +279,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -308,7 +308,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -367,7 +367,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -402,7 +402,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -449,7 +449,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -478,7 +478,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -537,7 +537,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -634,7 +634,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -649,7 +649,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/index3.html b/index3.html
index 300d88340..185ac785a 100644
--- a/index3.html
+++ b/index3.html
@@ -190,7 +190,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -228,7 +228,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -288,7 +288,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -317,7 +317,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -376,7 +376,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -411,7 +411,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -458,7 +458,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -487,7 +487,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -546,7 +546,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -643,7 +643,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -658,7 +658,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/UI/buttons.html b/pages/UI/buttons.html
index 995470d22..633039149 100644
--- a/pages/UI/buttons.html
+++ b/pages/UI/buttons.html
@@ -179,7 +179,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -217,7 +217,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -277,7 +277,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -306,7 +306,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -365,7 +365,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -400,7 +400,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -447,7 +447,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -476,7 +476,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -535,7 +535,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -632,7 +632,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -647,7 +647,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/UI/general.html b/pages/UI/general.html
index d04626dcc..36d97c91c 100644
--- a/pages/UI/general.html
+++ b/pages/UI/general.html
@@ -223,7 +223,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -261,7 +261,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -321,7 +321,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -350,7 +350,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -409,7 +409,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -444,7 +444,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -491,7 +491,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -520,7 +520,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -579,7 +579,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -676,7 +676,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -691,7 +691,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/UI/icons.html b/pages/UI/icons.html
index 791615002..a66a02316 100644
--- a/pages/UI/icons.html
+++ b/pages/UI/icons.html
@@ -179,7 +179,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -217,7 +217,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -277,7 +277,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -306,7 +306,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -365,7 +365,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -400,7 +400,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -447,7 +447,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -476,7 +476,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -535,7 +535,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -632,7 +632,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -647,7 +647,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/UI/modals.html b/pages/UI/modals.html
index 0c2f88876..e7a8f3642 100644
--- a/pages/UI/modals.html
+++ b/pages/UI/modals.html
@@ -183,7 +183,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -221,7 +221,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -281,7 +281,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -310,7 +310,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -369,7 +369,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -404,7 +404,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -451,7 +451,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -480,7 +480,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -539,7 +539,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -636,7 +636,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -651,7 +651,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/UI/navbar.html b/pages/UI/navbar.html
index ea8156806..301f38e95 100644
--- a/pages/UI/navbar.html
+++ b/pages/UI/navbar.html
@@ -185,7 +185,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -223,7 +223,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -283,7 +283,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -312,7 +312,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -371,7 +371,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -406,7 +406,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -453,7 +453,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -482,7 +482,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -541,7 +541,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -638,7 +638,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -653,7 +653,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/UI/ribbons.html b/pages/UI/ribbons.html
index 097c8ea75..4a8f08691 100644
--- a/pages/UI/ribbons.html
+++ b/pages/UI/ribbons.html
@@ -179,7 +179,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                <br /> with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -217,7 +217,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -277,7 +277,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -306,7 +306,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -365,7 +365,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -400,7 +400,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -447,7 +447,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -476,7 +476,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -535,7 +535,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -632,7 +632,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -647,7 +647,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/UI/sliders.html b/pages/UI/sliders.html
index a546005cb..49f709772 100644
--- a/pages/UI/sliders.html
+++ b/pages/UI/sliders.html
@@ -183,7 +183,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -221,7 +221,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -281,7 +281,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -310,7 +310,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -369,7 +369,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -404,7 +404,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -451,7 +451,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -480,7 +480,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -539,7 +539,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -636,7 +636,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -651,7 +651,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/UI/timeline.html b/pages/UI/timeline.html
index 8412c2a28..6ceb78f42 100644
--- a/pages/UI/timeline.html
+++ b/pages/UI/timeline.html
@@ -180,7 +180,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                <br /> with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -218,7 +218,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -278,7 +278,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -307,7 +307,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -366,7 +366,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -401,7 +401,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -448,7 +448,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -477,7 +477,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -536,7 +536,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -633,7 +633,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -648,7 +648,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/calendar.html b/pages/calendar.html
index adbe465fe..6542e5c75 100644
--- a/pages/calendar.html
+++ b/pages/calendar.html
@@ -184,7 +184,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -222,7 +222,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -282,7 +282,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -311,7 +311,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -370,7 +370,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -405,7 +405,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -452,7 +452,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -481,7 +481,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -540,7 +540,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -637,7 +637,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -652,7 +652,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/charts/chartjs.html b/pages/charts/chartjs.html
index 8791b8e4b..2fbe9279f 100644
--- a/pages/charts/chartjs.html
+++ b/pages/charts/chartjs.html
@@ -180,7 +180,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -218,7 +218,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -278,7 +278,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -307,7 +307,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -366,7 +366,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -401,7 +401,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -448,7 +448,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -477,7 +477,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -536,7 +536,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -633,7 +633,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -648,7 +648,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/charts/flot.html b/pages/charts/flot.html
index f25494ba6..7c6d586e9 100644
--- a/pages/charts/flot.html
+++ b/pages/charts/flot.html
@@ -179,7 +179,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -217,7 +217,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -277,7 +277,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -306,7 +306,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -365,7 +365,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -400,7 +400,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -447,7 +447,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -476,7 +476,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -535,7 +535,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -632,7 +632,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -647,7 +647,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/charts/inline.html b/pages/charts/inline.html
index cc095b9f9..d77c5e0b4 100644
--- a/pages/charts/inline.html
+++ b/pages/charts/inline.html
@@ -179,7 +179,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -217,7 +217,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -277,7 +277,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -306,7 +306,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -365,7 +365,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -400,7 +400,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -447,7 +447,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -476,7 +476,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -535,7 +535,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -632,7 +632,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -647,7 +647,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/404.html b/pages/examples/404.html
index d7f77e4b1..d5f558f2c 100644
--- a/pages/examples/404.html
+++ b/pages/examples/404.html
@@ -179,7 +179,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -217,7 +217,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -277,7 +277,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -306,7 +306,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -365,7 +365,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -400,7 +400,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -447,7 +447,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -476,7 +476,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -535,7 +535,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -632,7 +632,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -647,7 +647,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/500.html b/pages/examples/500.html
index 2c7a693cb..de9419ab2 100644
--- a/pages/examples/500.html
+++ b/pages/examples/500.html
@@ -179,7 +179,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -217,7 +217,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -277,7 +277,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -306,7 +306,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -365,7 +365,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -400,7 +400,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -447,7 +447,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -476,7 +476,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -535,7 +535,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -632,7 +632,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -647,7 +647,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/blank.html b/pages/examples/blank.html
index 74bb5c499..67394d3b7 100644
--- a/pages/examples/blank.html
+++ b/pages/examples/blank.html
@@ -180,7 +180,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -218,7 +218,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -278,7 +278,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -307,7 +307,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -366,7 +366,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -401,7 +401,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -448,7 +448,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -477,7 +477,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -536,7 +536,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -633,7 +633,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -648,7 +648,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/contacts.html b/pages/examples/contacts.html
index 288f85d2e..c8a844aa0 100644
--- a/pages/examples/contacts.html
+++ b/pages/examples/contacts.html
@@ -180,7 +180,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -218,7 +218,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -278,7 +278,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -307,7 +307,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -366,7 +366,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -401,7 +401,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -448,7 +448,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -477,7 +477,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -536,7 +536,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -633,7 +633,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -648,7 +648,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/e-commerce.html b/pages/examples/e-commerce.html
index 918564f8f..86472b1e6 100644
--- a/pages/examples/e-commerce.html
+++ b/pages/examples/e-commerce.html
@@ -180,7 +180,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -218,7 +218,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -278,7 +278,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -307,7 +307,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -366,7 +366,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -401,7 +401,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -448,7 +448,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -477,7 +477,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -536,7 +536,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -633,7 +633,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -648,7 +648,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/invoice.html b/pages/examples/invoice.html
index 5f1857e6f..d1d6c5c96 100644
--- a/pages/examples/invoice.html
+++ b/pages/examples/invoice.html
@@ -179,7 +179,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -217,7 +217,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -277,7 +277,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -306,7 +306,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -365,7 +365,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -400,7 +400,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -447,7 +447,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -476,7 +476,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -535,7 +535,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -632,7 +632,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -647,7 +647,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/language-menu.html b/pages/examples/language-menu.html
index f8f912576..f623789a8 100644
--- a/pages/examples/language-menu.html
+++ b/pages/examples/language-menu.html
@@ -192,7 +192,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -230,7 +230,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -290,7 +290,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -319,7 +319,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -378,7 +378,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -413,7 +413,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -460,7 +460,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -489,7 +489,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -548,7 +548,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -645,7 +645,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -660,7 +660,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/legacy-user-menu.html b/pages/examples/legacy-user-menu.html
index f44a0c783..48446a7d6 100644
--- a/pages/examples/legacy-user-menu.html
+++ b/pages/examples/legacy-user-menu.html
@@ -207,7 +207,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -245,7 +245,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -305,7 +305,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -334,7 +334,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -393,7 +393,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -428,7 +428,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -475,7 +475,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -504,7 +504,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -563,7 +563,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -660,7 +660,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -675,7 +675,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/pace.html b/pages/examples/pace.html
index 02bd64cfa..fc37ca57c 100644
--- a/pages/examples/pace.html
+++ b/pages/examples/pace.html
@@ -182,7 +182,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -220,7 +220,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -280,7 +280,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -309,7 +309,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -368,7 +368,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -403,7 +403,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -450,7 +450,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -479,7 +479,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -538,7 +538,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -635,7 +635,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -650,7 +650,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/profile.html b/pages/examples/profile.html
index d7863e794..454f16733 100644
--- a/pages/examples/profile.html
+++ b/pages/examples/profile.html
@@ -179,7 +179,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -217,7 +217,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -277,7 +277,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -306,7 +306,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -365,7 +365,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -400,7 +400,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -447,7 +447,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -476,7 +476,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -535,7 +535,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -632,7 +632,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -647,7 +647,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/project-add.html b/pages/examples/project-add.html
index c17d16633..6fd8173c7 100644
--- a/pages/examples/project-add.html
+++ b/pages/examples/project-add.html
@@ -180,7 +180,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -218,7 +218,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -278,7 +278,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -307,7 +307,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -366,7 +366,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -401,7 +401,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -448,7 +448,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -477,7 +477,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -535,7 +535,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -632,7 +632,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -647,7 +647,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/project-detail.html b/pages/examples/project-detail.html
index cc73b3a96..c902c0d77 100644
--- a/pages/examples/project-detail.html
+++ b/pages/examples/project-detail.html
@@ -180,7 +180,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -218,7 +218,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -278,7 +278,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -307,7 +307,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -366,7 +366,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -401,7 +401,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -448,7 +448,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -477,7 +477,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -537,7 +537,7 @@
             </ul>
 
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -634,7 +634,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -649,7 +649,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/project-edit.html b/pages/examples/project-edit.html
index e64a1fc18..98d69929a 100644
--- a/pages/examples/project-edit.html
+++ b/pages/examples/project-edit.html
@@ -180,7 +180,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -218,7 +218,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -278,7 +278,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -307,7 +307,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -366,7 +366,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -401,7 +401,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -448,7 +448,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -477,7 +477,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -536,7 +536,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -633,7 +633,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -648,7 +648,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/examples/projects.html b/pages/examples/projects.html
index 7026220e5..4ac961b2d 100644
--- a/pages/examples/projects.html
+++ b/pages/examples/projects.html
@@ -180,7 +180,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -218,7 +218,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -278,7 +278,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -307,7 +307,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -366,7 +366,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -401,7 +401,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -448,7 +448,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -477,7 +477,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -536,7 +536,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -633,7 +633,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -648,7 +648,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/forms/advanced.html b/pages/forms/advanced.html
index e2f45e379..c9b6d948b 100644
--- a/pages/forms/advanced.html
+++ b/pages/forms/advanced.html
@@ -192,7 +192,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -230,7 +230,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -290,7 +290,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -319,7 +319,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -378,7 +378,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -413,7 +413,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -460,7 +460,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -489,7 +489,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -548,7 +548,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -645,7 +645,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -660,7 +660,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/forms/editors.html b/pages/forms/editors.html
index 5ae6dae58..f5326d69b 100644
--- a/pages/forms/editors.html
+++ b/pages/forms/editors.html
@@ -181,7 +181,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -219,7 +219,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -279,7 +279,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -308,7 +308,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -367,7 +367,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -402,7 +402,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -449,7 +449,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -478,7 +478,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -537,7 +537,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -634,7 +634,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -649,7 +649,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/forms/general.html b/pages/forms/general.html
index e5c1275bd..2a05970da 100644
--- a/pages/forms/general.html
+++ b/pages/forms/general.html
@@ -179,7 +179,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -217,7 +217,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -277,7 +277,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -306,7 +306,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -365,7 +365,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -400,7 +400,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -447,7 +447,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -476,7 +476,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -535,7 +535,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -632,7 +632,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -647,7 +647,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/forms/validation.html b/pages/forms/validation.html
index c0bc56ebb..6f15dd309 100644
--- a/pages/forms/validation.html
+++ b/pages/forms/validation.html
@@ -179,7 +179,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -217,7 +217,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -277,7 +277,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -306,7 +306,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -365,7 +365,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -400,7 +400,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -447,7 +447,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -476,7 +476,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -535,7 +535,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -632,7 +632,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -647,7 +647,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/gallery.html b/pages/gallery.html
index a7107c02b..680294e4e 100644
--- a/pages/gallery.html
+++ b/pages/gallery.html
@@ -181,7 +181,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -219,7 +219,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -279,7 +279,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -308,7 +308,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -367,7 +367,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -402,7 +402,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -449,7 +449,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -478,7 +478,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -537,7 +537,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -634,7 +634,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -649,7 +649,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/layout/boxed.html b/pages/layout/boxed.html
index 50ab96582..8258a5ad7 100644
--- a/pages/layout/boxed.html
+++ b/pages/layout/boxed.html
@@ -180,7 +180,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -218,7 +218,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -278,7 +278,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -307,7 +307,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -366,7 +366,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -401,7 +401,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -448,7 +448,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -477,7 +477,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -536,7 +536,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -633,7 +633,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -648,7 +648,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/layout/collapsed-sidebar.html b/pages/layout/collapsed-sidebar.html
index 65463b7bb..de54d1c55 100644
--- a/pages/layout/collapsed-sidebar.html
+++ b/pages/layout/collapsed-sidebar.html
@@ -180,7 +180,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -218,7 +218,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -278,7 +278,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -307,7 +307,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -366,7 +366,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -401,7 +401,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -448,7 +448,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -477,7 +477,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -536,7 +536,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -633,7 +633,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -648,7 +648,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/layout/fixed-footer.html b/pages/layout/fixed-footer.html
index e14338a02..7e739c0b8 100644
--- a/pages/layout/fixed-footer.html
+++ b/pages/layout/fixed-footer.html
@@ -180,7 +180,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -218,7 +218,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -278,7 +278,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -307,7 +307,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -366,7 +366,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -401,7 +401,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -448,7 +448,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -477,7 +477,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -536,7 +536,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -633,7 +633,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -648,7 +648,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/layout/fixed-sidebar-custom.html b/pages/layout/fixed-sidebar-custom.html
index a092c7de9..dff0a19f6 100644
--- a/pages/layout/fixed-sidebar-custom.html
+++ b/pages/layout/fixed-sidebar-custom.html
@@ -182,7 +182,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -220,7 +220,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -280,7 +280,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -309,7 +309,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -368,7 +368,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -403,7 +403,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -450,7 +450,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -479,7 +479,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -538,7 +538,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -635,7 +635,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -650,7 +650,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/layout/fixed-sidebar.html b/pages/layout/fixed-sidebar.html
index 1b1236947..6fe1e663a 100644
--- a/pages/layout/fixed-sidebar.html
+++ b/pages/layout/fixed-sidebar.html
@@ -182,7 +182,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -220,7 +220,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -280,7 +280,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -309,7 +309,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -368,7 +368,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -403,7 +403,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -450,7 +450,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -479,7 +479,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -538,7 +538,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -635,7 +635,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -650,7 +650,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/layout/fixed-topnav.html b/pages/layout/fixed-topnav.html
index 8faa02ce9..99e316091 100644
--- a/pages/layout/fixed-topnav.html
+++ b/pages/layout/fixed-topnav.html
@@ -180,7 +180,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -218,7 +218,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -278,7 +278,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -307,7 +307,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -366,7 +366,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -401,7 +401,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -448,7 +448,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -477,7 +477,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -536,7 +536,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -633,7 +633,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -648,7 +648,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/layout/top-nav-sidebar.html b/pages/layout/top-nav-sidebar.html
index 7eac259c4..588f64f28 100644
--- a/pages/layout/top-nav-sidebar.html
+++ b/pages/layout/top-nav-sidebar.html
@@ -225,7 +225,7 @@ scratch. This page gets rid of all links and provides the needed markup only.
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -263,7 +263,7 @@ scratch. This page gets rid of all links and provides the needed markup only.
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -323,7 +323,7 @@ scratch. This page gets rid of all links and provides the needed markup only.
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -352,7 +352,7 @@ scratch. This page gets rid of all links and provides the needed markup only.
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -411,7 +411,7 @@ scratch. This page gets rid of all links and provides the needed markup only.
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -446,7 +446,7 @@ scratch. This page gets rid of all links and provides the needed markup only.
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -493,7 +493,7 @@ scratch. This page gets rid of all links and provides the needed markup only.
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -522,7 +522,7 @@ scratch. This page gets rid of all links and provides the needed markup only.
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -581,7 +581,7 @@ scratch. This page gets rid of all links and provides the needed markup only.
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -678,7 +678,7 @@ scratch. This page gets rid of all links and provides the needed markup only.
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -693,7 +693,7 @@ scratch. This page gets rid of all links and provides the needed markup only.
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/mailbox/compose.html b/pages/mailbox/compose.html
index 5e5b4faeb..4623e6ce9 100644
--- a/pages/mailbox/compose.html
+++ b/pages/mailbox/compose.html
@@ -181,7 +181,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -219,7 +219,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -279,7 +279,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -308,7 +308,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -367,7 +367,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -402,7 +402,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -441,7 +441,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -470,7 +470,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -529,7 +529,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -626,7 +626,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -641,7 +641,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/mailbox/mailbox.html b/pages/mailbox/mailbox.html
index 98c235c23..86f5b9825 100644
--- a/pages/mailbox/mailbox.html
+++ b/pages/mailbox/mailbox.html
@@ -181,7 +181,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -219,7 +219,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -279,7 +279,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -308,7 +308,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -367,7 +367,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -402,7 +402,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -441,7 +441,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -470,7 +470,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -529,7 +529,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -626,7 +626,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -641,7 +641,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/mailbox/read-mail.html b/pages/mailbox/read-mail.html
index 99496e8a4..6a953bb78 100644
--- a/pages/mailbox/read-mail.html
+++ b/pages/mailbox/read-mail.html
@@ -179,7 +179,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -217,7 +217,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -277,7 +277,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -306,7 +306,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -365,7 +365,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -400,7 +400,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -439,7 +439,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -468,7 +468,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -527,7 +527,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -624,7 +624,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -639,7 +639,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/tables/data.html b/pages/tables/data.html
index 47dd8fa32..8bab01321 100644
--- a/pages/tables/data.html
+++ b/pages/tables/data.html
@@ -182,7 +182,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -220,7 +220,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -280,7 +280,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -309,7 +309,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -368,7 +368,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -403,7 +403,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -450,7 +450,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -479,7 +479,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -538,7 +538,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -635,7 +635,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -650,7 +650,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/tables/jsgrid.html b/pages/tables/jsgrid.html
index c276d50e2..8d9b17b9e 100644
--- a/pages/tables/jsgrid.html
+++ b/pages/tables/jsgrid.html
@@ -182,7 +182,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -220,7 +220,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -280,7 +280,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -309,7 +309,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -368,7 +368,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -403,7 +403,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -450,7 +450,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -479,7 +479,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -538,7 +538,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -635,7 +635,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -650,7 +650,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/tables/simple.html b/pages/tables/simple.html
index 2f881a6de..9e4d9e2e3 100644
--- a/pages/tables/simple.html
+++ b/pages/tables/simple.html
@@ -179,7 +179,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -217,7 +217,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -277,7 +277,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -306,7 +306,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -365,7 +365,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -400,7 +400,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -447,7 +447,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -476,7 +476,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -535,7 +535,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -632,7 +632,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -647,7 +647,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/pages/widgets.html b/pages/widgets.html
index 464771a06..fffd0a937 100644
--- a/pages/widgets.html
+++ b/pages/widgets.html
@@ -181,7 +181,7 @@
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>
@@ -219,7 +219,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-copy"></i>
               <p>
@@ -279,7 +279,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-chart-pie"></i>
               <p>
@@ -308,7 +308,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-tree"></i>
               <p>
@@ -367,7 +367,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-edit"></i>
               <p>
@@ -402,7 +402,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-table"></i>
               <p>
@@ -449,7 +449,7 @@
               </p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-envelope"></i>
               <p>
@@ -478,7 +478,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-book"></i>
               <p>
@@ -537,7 +537,7 @@
               </li>
             </ul>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon far fa-plus-square"></i>
               <p>
@@ -634,7 +634,7 @@
               <p>Level 1</p>
             </a>
           </li>
-          <li class="nav-item has-treeview">
+          <li class="nav-item">
             <a href="#" class="nav-link">
               <i class="nav-icon fas fa-circle"></i>
               <p>
@@ -649,7 +649,7 @@
                   <p>Level 2</p>
                 </a>
               </li>
-              <li class="nav-item has-treeview">
+              <li class="nav-item">
                 <a href="#" class="nav-link">
                   <i class="far fa-circle nav-icon"></i>
                   <p>
diff --git a/starter.html b/starter.html
index 7da9592fe..0ba6b5ccc 100644
--- a/starter.html
+++ b/starter.html
@@ -184,7 +184,7 @@ scratch. This page gets rid of all links and provides the needed markup only.
         <ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
           <!-- Add icons to the links using the .nav-icon class
                with font-awesome or any other icon font library -->
-          <li class="nav-item has-treeview menu-open">
+          <li class="nav-item menu-open">
             <a href="#" class="nav-link active">
               <i class="nav-icon fas fa-tachometer-alt"></i>
               <p>