tabler/site/styles/_preview.scss

.preview {
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  background: mix($color-dark, $color-white, 90%);
  color: $color-white;
  height: 100vh;
  height: 100svh;
}

.preview-navbar {
  --navbar-height: 4rem;
  padding: 0 1rem;
  height: var(--navbar-height);
  line-height: var(--navbar-height);
  background: $color-white;
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: $color-dark;

  .icon {
    width: 1.5rem;
    height: 1.5rem;
  }
}

.preview-navbar-link {
  height: 2.5rem;
  min-width: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: inherit;
  background: transparent;
  border: 0;
  cursor: pointer;
  opacity: .64;
  transition: $transition-duration opacity;

  &:hover,
  &.active {
    color: inherit;
    opacity: 1;
  }
}

.preview-navbar-devices {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  transform: translateX(-50%);
  display: flex;
  align-items: center;

  @include media-breakpoint-down(lg) {
    display: none;
  }
}

.preview-iframe {
  display: block;
  max-width: 100%;
  width: 100%;
  flex: 1;
  margin: 0 auto;
  background: $color-white;
}