:root {
    --rainbow: #ff0000, #ff7f00, #ffff00, #00ff00, #00ffff, #0000ff, #8b00ff;
}

body {
    color: #fff;
    background: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8)),
        url(bg.png);
    background-repeat: repeat;
    background-size: 100px;
    font-family: "Arial";
    letter-spacing: 0.2px;
    margin-top: 0px;
}

.Bilder_ {
    object-fit: contain;
    padding: 10px;
    height: 100%;
    display: block;
    margin-top: auto;
    margin-bottom: auto;
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
}

.Videos_ {
    object-fit: contain;
    padding: 10px;
    height: 100%;
    display: block;
    margin-top: auto;
    margin-bottom: auto;
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
}

.kasten {
    background: #000000;
    align-self: stretch;
    margin-left: 10px;
    margin-bottom: 10px;
    border: 5px solid grey;
    float: left;
    height: 300px;
    min-height: 10em;
    border: 5px solid #cc0000;
}

.bar-main {
    border: 5px solid #000000;
    background: linear-gradient(to right, var(--rainbow));
    text-align: center;
}

#btn-close-CSS {
    background: url(upload.png) no-repeat;
    display: flex;
    justify-content: space-around;
    background-size: contain;
    background-position: center;
    color: white;
    background-color: lightgray;
    border: noe;
    height: 50px;
    width: 50px;
}

.img-fixed-info {
    position: fixed;
    width: 40px;
}

input[type="text"] {
    background-color: rgba(0, 0, 0, 0.4);
    color: white;
}

.btn-logout {
    background: url(logout.png) no-repeat;
    background-size: contain;
    background-position: center;
    color: white;
    background-color: transparent;
    border: none;
    float: left;
    height: 50px;
    width: 50px;
    margin: 10px;
}

#custom-button {
    padding: 5px;
    color: white;
    background-color: #009578;
    border: 1px solid #000;
    border-radius: 5px;
}

#custom-button:hover {
    background-color: #32353b;
}

#custom-text {
    margin-left: 10px;
    color: #aaa;
}
*,
*::after,
*::before {
    box-sizing: border-box;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    transition: 200ms ease-in-out;
    border: 5px solid #cc0000;
    z-index: 10;
    background: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8)),
        url(bg.png);
    background-repeat: repeat;
    background-size: 100px;
    width: 500px;
    max-width: 80%;
}

.modal.active {
    transform: translate(-50%, -50%) scale(1);
}

.modal-header {
    padding: 10px 15px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    border-bottom: 1px solid black;
}

.modal-header .title {
    font-size: 1.25rem;
    font-weight: bold;
}

.modal-header .close-button {
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
    font-size: 1.25rem;
    font-weight: bold;
}

#themediv {
    float: left;
}

.close-button {
    position: absolute;
    right: 0px;
    width: 30px;
    font-size: 20px;
}

.modal-body {
    padding: 10px 15px;
}

#overlay {
    position: fixed;
    opacity: 0;
    transition: 200ms ease-in-out;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(50, 53, 59, 0.9);
    pointer-events: none;
}

#overlay.active {
    opacity: 1;
    pointer-events: all;
}
.btn-modal {
    background: url(info.png) no-repeat;
    background-size: contain;
    background-position: center;
    color: white;
    background-color: transparent;
    border: none;
    float: left;
    height: 50px;
    width: 50px;
    margin: 10px;
}
a {
    color: white;
    text-decoration: none;
}
a:hover {
    font-weight: bold;
    color: green;
}