<header>
  <h1>Carousel</h1>
</header>
<main>
  <div id="carousel" style="--rotation-time: 30s; --elements: 12;">
    <div class="element" style="--item: 1;" data-item="1">
      <div class="horse"></div>
    </div>
    <div class="element" style="--item: 2;" data-item="2">
      <div class="horse"></div>
    </div>
    <div class="element" style="--item: 3;" data-item="3">
      <div class="horse"></div>
    </div>
    <div class="element" style="--item: 4;" data-item="4">
      <div class="horse"></div>
    </div>
    <div class="element" style="--item: 5;" data-item="5">
      <div class="horse"></div>
    </div>
    <div class="element" style="--item: 6;" data-item="6">
      <div class="horse"></div>
    </div>
    <div class="element" style="--item: 7;" data-item="7">
      <div class="horse"></div>
    </div>
    <div class="element" style="--item: 8;" data-item="8">
      <div class="horse"></div>
    </div>
    <div class="element" style="--item: 9;" data-item="9">
      <div class="horse"></div>
    </div>
    <div class="element" style="--item: 10;" data-item="10">
      <div class="horse"></div>
    </div>
    <div class="element" style="--item: 11;" data-item="11">
      <div class="horse"></div>
    </div>
    <div class="element" style="--item: 12;" data-item="12">
      <div class="horse"></div>
    </div>
  </div>
</main>

@import url("https://fonts.cdnfonts.com/css/poppins");

*,
*::after,
*::before {
  position: relative;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Poppins", sans-serif;
  color: #333;
  height: 100vh;
  background: radial-gradient(circle at center -20%, #6080c0 0%, #101720 70%);
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}
header h1 {
  font-size: 5rem;
  font-weight: 900;
  letter-spacing:-8px;
  text-transform: uppercase;
  background: text conic-gradient(at 50% 50% in hsl longer hue, hsl(0 100 50), hsl(0 100 50));
  color: transparent;
  width: fit-content;
}

#carousel {
  width: 150px;
  height: 250px;
  transform: perspective(1000px);
  margin-top: 0px;
  transform-style: preserve-3d;
  animation: var(--rotation-time) carousel linear reverse infinite;
  rotate: x 0deg;
  transition: rotate 1s ease-in-out, margin-top 1s ease-in-out;
}
#carousel:hover {
  margin-top: -150px;
  rotate: x -15deg;
}

#carousel::after,
#carousel::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 900px;
  height: 900px;
  border-radius: 50%;
  transform: translate(-50%, 50%) rotateX(90deg);
  background: radial-gradient(circle at center, transparent 0 395px, #0009 397px 403px, #fff9 405px), repeating-conic-gradient(#fff7 0deg 2.5deg, #fff0 3deg, 27deg, #fff7 27.5deg 30deg), conic-gradient(in hsl longer hue, red, red);
  z-index: -1;
}
#carousel::before {
  bottom: auto;
  top: 0;
  transform: translate(-50%, -50%) rotateX(90deg);
  background: radial-gradient(circle at center, transparent 0 350px, #d00 350px, #900 400px, #d00 450px);
}

.element {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, #900, #d00, #900) 70px / 10px no-repeat;
  transform: rotateY(calc((var(--item) - 1) * 360deg / var(--elements))) translateZ(400px);
  transform-style: preserve-3d;
}

.element::after,
.element::before {
  position:absolute;
  bottom: -52px;
  border: 1px solid #9097a0;
  background: linear-gradient(to bottom, #c0c7d0 0%, #606770 100%);
  height: 50px;
}

.element::after {
  content: attr(data-item);
  left: 0;
  width: 100%;
  text-align: center;
  font-size: 2rem;
  font-weight: bold;
  line-height: 50px;
  transform: translateZ(35px);
}

.element::before {
  content:'';
  left:150px;
  width:82px;
  transform-origin: left center;
  transform: translateZ(35px) rotateY(16deg);
}

.horse {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 150px;
  height: 100px;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse at center top, #a0d0f0 0%, #80a0f0 70%, #5080c0 100%);
  border-radius: 50%;
  animation: calc(var(--rotation-time) / var(--elements)) horse ease-in-out infinite;
  animation-delay: calc(var(--item) * -0.5s);
}

@keyframes carousel {
  0% {
    transform: perspective(1000px) rotateY(0deg);
  }
  100% {
    transform: perspective(1000px) rotateY(360deg);
  }
}

@keyframes horse {
  0%,
  100% {
    transform: translate(-50%, -30%);
  }
  50% {
    transform: translate(-50%, -70%);
  }
}