website/styl/lib/_header.styl

.header-wrapper *:before {
    box-sizing: border-box;
}
.header-homepage {
  background: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.6)), url(/API/getFile.php?filename=img/bannerHomeCrop.webp);
  background-size: cover;
  position: relative;
  color: #fff;
  z-index: 0;
  padding-top: 160px;
  padding-bottom: 360px;

  h1 {
    width: 100%;
    text-align: center;
    font-size: 3.3em;
    font-weight: 600;
  }
  }

.header-separator-bottom {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  svg { display: block;
    width: calc(100% + 1.3px);
    height: 90px;
    fill: $back-color;
  }
}

.header-wrapper {
  position: relative;
}