.gallery-body {
  display: flex;
  align-items: center;
  height: 100vh;
  background: #111;
}
.floor {
  position: fixed;
  width: 100%;
  height: 54%;
  &:before,
  &:after {
    content: "";
    position: absolute;
    width: 100%;
    height: -16%;
  }
  &:before {
    transform-origin: bottom center;
    transform: perspective(400px) rotateX(30deg) scale(2, 1) translateZ(0);
    -webkit-mask-image: -webkit-gradient(
      linear,
      left 90%,
      left top,
      from(rgba(0, 0, 0, 1)),
      to(rgba(0, 0, 0, 0))
    );
    mask-image: gradient(
      linear,
      left 90%,
      left top,
      from(rgba(0, 0, 0, 1)),
      to(rgba(0, 0, 0, 0))
    );
    background-position: center center;
    background-size: 45px 45px;
    background-image: linear-gradient(
        to right,
        rgba(61, 211, 237, 80%) 2px,
        transparent 5px
      ),
      linear-gradient(to bottom, rgba(61, 211, 237, 80%) 2px, transparent 5px);
    box-shadow: inset 0 -11px 10px #3dd3ed;
  }
}

.parent-gallery {
  width: 100%;
  height: 100vh;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.parent-gallery .gallery {
  position: absolute;
  width: 150px;
  height: 200px;
  left: calc(50% - 75px);
  transform-style: preserve-3d;
  transform: perspective(900px) rotateX(-15deg) rotateY(0deg);
  animation: rotate 50s 2s linear infinite;
}
.parent-gallery .item {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: rotateY(calc((var(--index) - 1) * (360deg / var(--count))))
    translateZ(0px);
  animation: loadGallery 2s ease forwards;
}
.parent-gallery .item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  -webkit-box-reflect: below 0
    linear-gradient(transparent, rgba(255, 255, 255, 0.4));
}
@keyframes loadGallery {
  0% {
    opacity: 0;
    transform: rotateY(calc((var(--index) - 1) * (360deg / var(--count))))
      translateZ(0px);
  }
  10% {
    opacity: 0;
  }
  30% {
    opacity: 1;
  }
  100% {
    opacity: 1;
    transform: rotateY(calc((var(--index) - 1) * (360deg / var(--count))))
      translateZ(350px);
  }
}
@keyframes rotate {
  from {
    transform: perspective(900px) rotateX(-15deg) rotateY(0deg);
  }
  to {
    transform: perspective(900px) rotateX(-15deg) rotateY(360deg);
  }
}