Spiral Text Animation

HTML

<body>
  <ul>
    <li>Lorem ipsum dolor sit amet.</li>
    <li>Ab perspiciatis laborum eos</li>
    <li>nostrum neque et voluptates error</li>
    <li>sit voluptate labore.</li>
    <li>Et galisum magni non praesentium</li>
    <li>accusantium est deserunt esse.</li>
    <li>Eum laborum corporis et</li>
    <li>earum cumque est nulla ratione?</li>
    <li>Ut ipsa saepe aut distinctio</li>
    <li>veniam nam veritatis minima</li>
    <li>aut minima repellendus vel</li>
    <li>porro necessitatibus.</li>
    <li>Qui dolores itaque qui</li>
    <li>autem deserunt 33 temporibus</li>
    <li>similique id dolore atque non</li>
  </ul>
</body>

CSS

body {
  margin: 0;
  background-color: #2e3537;
  color: white;
  font-family: 'Arial', sans-serif;
}

ul {
  list-style: none;
  height: 100vh;
  max-height: 800px;
  min-height: 400px;
  overflow: hidden;
  text-align: center;
  perspective: 900px;
}

li {
  position: absolute;
  top: 0;
  width: 100%;
  font-size: 23px;
  font-weight: bold;
  transform: translateY(100vh);
  animation: animate 5s linear infinite;
}

@keyframes  animate {
  0% {
    transform: rotateY(90deg) translateY(105vh) rotate(0deg);
  }
  50% {
    transform: rotateY(0deg) translateY(50vh) rotate(0deg);
  }
  100% {
    transform: rotateY(-90deg) translateY(-5vh) rotate(0deg);
  }
}

li:nth-child(1) {
  animation-delay: 0.3s;
  right: 1rem;
}
li:nth-last-child(1) {
  right: 1rem;
}
li:nth-child(2) {
  animation-delay: 0.6s;
  right: 2rem;
}
li:nth-last-child(2) {
  right: 2rem;
}
li:nth-child(3) {
  animation-delay: 1s;
  right: 3rem;
}
li:nth-last-child(3) {
  right: 3rem;
}
li:nth-child(4) {
  animation-delay: 1.3s;
  right: 4rem;
}
li:nth-last-child(4) {
  right: 4rem;
}
li:nth-child(5) {
  animation-delay: 1.6s;
  right: 5rem;
}
li:nth-last-child(5) {
  right: 5rem;
}
li:nth-child(6) {
  animation-delay: 2s;
  right: 6rem;
}
li:nth-last-child(6) {
  right: 6rem;
}
li:nth-child(7) {
  animation-delay: 2.3s;
  right: 7rem;
}
li:nth-last-child(7) {
  right: 7rem;
}
li:nth-child(8) {
  animation-delay: 2.6s;
  right: 8rem;
}
li:nth-last-child(8) {
  right: 8rem;
}
li:nth-child(9) {
  animation-delay: 3s;
}
li:nth-child(10) {
  animation-delay: 3.3s;
}
li:nth-child(11) {
  animation-delay: 3.6s;
}
li:nth-child(12) {
  animation-delay: 4s;
}
li:nth-child(13) {
  animation-delay: 4.3s;
}
li:nth-child(14) {
  animation-delay: 4.6s;
}
li:nth-child(15) {
  animation-delay: 5s;
}