section {
  padding-top: 50px;
  padding-bottom: 50px;
  min-height: 60vh;
}

.active-tile {
  position: absolute;
  width: 0;
  height: 100%;
  background-color: #dedede;
}

@media (max-width: 991px) {
  .active-tile {
    height: 40px;
  }
}

header {
  position: fixed;
  right: 0;
  left: 0;
  top: 0;
  z-index: 1;
}

html {
  scroll-behavior: smooth;
}