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HTML 

              
                <section id="animations" class="section-animations">
  <h2 class="section-title title">5 Animations <span></span></h2>

  <!-- 5.3 Animations -->
  <article id="animations">

    <!-- 5.3.1 Basic Animation (Carousel) -->
    <h4 id="carousels-title" class="sub-section-title title">5.3.1 Basic Animation (Carousel) </h4>
    <article id="carousels">
      <!--       <h5>5.1.1 Race Track (Curves)</h5> -->
      <ul class="carousel-notes">
        <li><strong>HTML notes:</strong>
          <ul>
            <li>Carousel-scene = container</li>
            <li>Carousel = what we will rotate</li>
            <li>Cells = multiple images / slides</li>
          </ul>
        </li>
        <li><strong>CSS notes:</strong>
          <ul>
            <li>Carousel-scene = setup, set perspective</li>
            <li>Carousel = preserve-3d, transition</li>
            <li>Cells = divide # cells by 360, rotateY, + translateZ</li>
            <li>Keyframes = rotateY - carousel</li>
          </ul>
        </li>
      </ul>

      <div class="field field-carousel">
        <div class="carousel-scene">
          <div class="carousel">
            <div class="cell"><img class="avengers-1" src="https://images-na.ssl-images-amazon.com/images/I/712nF0GZjJL._AC_SY679_.jpg"></div>
            <div class="cell"><img class="avengers-2" src="https://images-na.ssl-images-amazon.com/images/I/71wV2rzkFwL._AC_SY741_.jpg"></div>
            <div class="cell"><img class="avengers-2.5" src="https://images-na.ssl-images-amazon.com/images/I/81Am11cr%2B1L._AC_SL1334_.jpg"></div>
            <div class="cell"><img class="avengers-3" src="https://images-na.ssl-images-amazon.com/images/I/A1t8xCe9jwL._AC_SY741_.jpg"></div>
            <div class="cell"><img class="avengers-4" src="https://images-na.ssl-images-amazon.com/images/I/71niXI3lxlL._AC_SY679_.jpg"></div>
          </div>
        </div>
      </div>

      <div class="section-nav-buttons">
        <a class="prev-section" href="#layout-box-model">&uarr;</a>
        <a class="next-section end" href="#layout-box-model">&#8656;<span>Top</span></a>
      </div>
    </article>

    <!-- 5.3.1 Basic Animation (Pacman) -->
    <h4 id="basic-animations-title" class="sub-section-title title">5.3.1 Basic Animation (Pac Man)</h4>
    <article id="basic-animations">
      <!--       <h5>5.1.1 Race Track (Curves)</h5> -->
      <hr class="pacman">

      <div class="section-nav-buttons">
        <a class="prev-section" href="#layout-box-model">&uarr;</a>
        <a class="next-section end" href="#layout-box-model">&#8656;<span>Top</span></a>
      </div>
    </article>

    <!-- 5.3.2 Sprite Animations -->
    <h4 id="sprite-animations-title" class="sub-section-title title">5.3.2 Sprite Animations</h4>
    <article id="sprite-animations">
      <!--       <h5>5.1.1 Race Track (Curves)</h5> -->
      <div class="sprite"></div>

      <div class="section-nav-buttons">
        <a class="prev-section" href="#layout-box-model">&uarr;</a>
        <a class="next-section end" href="#layout-box-model">&#8656;<span>Top</span></a>
      </div>
    </article>

    <!-- 5.3.3 SVG Animations -->
    <h4 id="svg-animations-title" class="sub-section-title title">5.3.3 SVG Animations</h4>
    <article id="svg-animations">
      <!--       <h5>5.1.1 Race Track (Curves)</h5> -->
      <a href="https://codepen.io/jekkilekki/pen/eBGyRe">SVG Animations Example</a>

      <div class="section-nav-buttons">
        <a class="prev-section" href="#layout-box-model">&uarr;</a>
        <a class="next-section end" href="#layout-box-model">&#8656;<span>Top</span></a>
      </div>
    </article>

  </article>
</section>
!

CSS 

              
                /* ---------------------------------------------------
 * 0 Document Base Styles
 * ---------------------------------------------------*/
:root {
  --link-color: rgba(10, 47, 158, 1);
}

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}

body {
  font-size: 16px;
  font-family: Muli;
  margin: 0;
  color: #151025;
}

section {
  max-width: 100rem;
  margin: 0 auto;
  padding: 6rem;
  position: relative;
  background: #efefef;
}

a {
  color: rgba(10, 47, 158, 1);
}

a:hover,
a:active,
a:focus {
  color: rgba(53, 68, 255, 1);
}

a:visited {
  color: rgba(164, 88, 255, 1);
}

ul,
ol,
li {
  margin: 0;
  padding: 0;
}

ul ul {
  margin-left: 2rem;
}

.section-title {
  color: white;
  background: linear-gradient(
    240deg,
    rgba(164, 88, 255, 1) 0%,
    rgba(53, 68, 255, 1) 40%,
    rgba(10, 47, 158, 1) 80%
  );
  background-image: url("https://www.transparenttextures.com/patterns/stardust.png"),
    linear-gradient(
      240deg,
      rgba(164, 88, 255, 1) 0%,
      rgba(53, 68, 255, 1) 40%,
      rgba(10, 47, 158, 1) 80%
    );

  margin: -6rem -6rem 3rem;
  padding: 6rem;
}

.section-title span {
  font-size: 60%;
  opacity: 0.6;
}

article {
  min-height: calc(100vh - 6rem);
  padding: 3rem 0;
  position: relative;
}

.section-nav-buttons {
  font-size: 4.8rem;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 10rem;
}

.section-nav-buttons a {
  text-decoration: none;
}

.next-section.end {
  transform: rotate(90deg);
  display: inline-block;
}

.next-section.end span {
  font-size: initial;
  position: absolute;
  top: 50%;
  transform: translateY(-50%) rotate(-90deg);
}

h2 {
  font-size: 4.4rem;
}

h3 {
  font-size: 3.6rem;
}

h4 {
  font-size: 3rem;
  position: relative;
}

h5 {
  padding-top: 0rem;
  margin-top: 0;
  font-size: 2.4rem;
}

article article article {
  padding: 0 10rem;
}

.col-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-gap: 1rem;
}

.title:before {
  content: "#";
  opacity: 0.3;
  position: absolute;
  left: 3.5rem;
  text-align: right;
}

.sub-section-title {
  background-image: url("https://www.transparenttextures.com/patterns/stardust.png"),
    linear-gradient(
      240deg,
      rgba(164, 88, 255, 1) 0%,
      rgba(53, 68, 255, 1) 40%,
      rgba(10, 47, 158, 1) 80%
    );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.sub-section-title:before {
  left: -2rem;
  -webkit-background-clip: text;
  -webkit-text-fill-color: initial;
}

.sub-section-title span {
  font-size: 50%;
  -webkit-text-fill-color: gray;
  opacity: 50%;
}

.font-notes {
  margin-top: 2rem;
  margin-bottom: 2rem;
}

.pre-columns pre {
  background: #151025;
  color: #efefef;
  padding: 2rem 2rem 0;
}

/* ---------------------------------------------------
 * 5.3.1 Basic Animation (Carousel)
 * ---------------------------------------------------*/
.field,
.field-2d,
.field-3d {
  border: 2px solid hsl(240deg, 60%, 60%, 0.3);
  background: gainsboro;
  width: 600px;
  height: 400px;
  position: absolute;
  right: 0;
  top: 0;
}

.carousel-notes {
  margin-bottom: 14rem;
}

.carousel-scene {
  width: 210px;
  height: 140px;
  position: relative;
  perspective: 1000px;
  left: 200px;
  top: 30px;
}

.carousel {
  width: 100%;
  height: 100%;
  position: absolute;
  transform-style: preserve-3d;
  /*   transform: translateZ(-288px); */
  transition: transform 1s;
}

.cell {
  position: absolute;
  width: 200px;
  /*   transform-origin: 50% 50% 0px; */
}

.cell img {
  width: 100%;
}

.cell:nth-child(1) {
  transform: rotateY(0deg) translateZ(160px);
}
.cell:nth-child(2) {
  transform: rotateY(72deg) translateZ(160px);
}
.cell:nth-child(3) {
  transform: rotateY(144deg) translateZ(160px);
}
.cell:nth-child(4) {
  transform: rotateY(216deg) translateZ(160px);
}
.cell:nth-child(5) {
  transform: rotateY(288deg) translateZ(160px);
}

@keyframes spin {
  to {
    transform: rotateY(-360deg);
  }
}

.carousel:hover {
  animation: spin 2s infinite ease-in-out 2s;
}

#carousels,
#carousels-title {
  /*   display: none; */
}

/* ---------------------------------------------------
 * 5.2 Transforms
 * ---------------------------------------------------*/
hr.pacman {
  border-style: dotted;
  border-width: 3px 0 0 0;
  border-color: gray;
  margin: 2rem 0;
}

hr.pacman::before {
  content: "";
  display: block;
  height: 1.6rem;
  position: absolute;
  top: 34px;
  left: 0;

  width: 0;
  height: 0;
  border-right: 18px solid transparent;
  border-left: 18px solid #cf00ff;
  border-bottom: 18px solid #cf00ff;
  border-top: 18px solid #cf00ff;
  border-radius: 18px;

  animation-name: eat, move;
  animation-duration: 0.5s, 10s;
  animation-timing-function: ease, linear;
  animation-iteration-count: infinite, infinite;
  animation-delay: 3s, 6s;
  animation-fill-mode: backwards, both;
  animation-direction: normal, normal;
}

hr:hover::before {
  animation-play-state: paused;
}

@keyframes eat {
  0% {
    border-right: 18px solid transparent;
  }
  50% {
    border-right: 18px solid #cf00ff;
  }
  100% {
    border-right: 18px solid transparent;
  }
}

@keyframes move {
  0% {
    left: 0;
  }
  100% {
    left: 100%;
  }
}

#basic-animations,
#basic-animations-title {
  /*     display: none; */
}

/* ---------------------------------------------------
 * 5.3.2 Sprite Animations
 * ---------------------------------------------------*/
.sprite {
  background: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/210284/doodle-sprite.png);
  overflow: hidden;
  background-size: cover;
  height: 510px;
  width: 200px;
  margin: 0 auto;
  background-position: top left 0px;
  transition: none;
}

.sprite:hover {
  animation: drink 1s;
  animation-timing-function: steps(1);
}

@keyframes drink {
  0% {
    background-position: top left 0px;
  }
  10% {
    background-position: top left 200px;
  }
  20% {
    background-position: top left 400px;
  }
  30% {
    background-position: top left 600px;
  }
  40% {
    background-position: top left 800px;
  }
  50% {
    background-position: top left 1000px;
  }
  60% {
    background-position: top left 1200px;
  }
  70% {
    background-position: top left 1400px;
  }
  80% {
    background-position: top left 1600px;
  }
  90% {
    background-position: top left 1800px;
  }
  100% {
    background-position: top left 2000px;
  }
}

/* ---------------------------------------------------
 * 5.2.6 Cubes & Boxes (https://3dtransforms.desandro.com/box)
 * ---------------------------------------------------*/
.cube-notes {
  margin-bottom: 14rem;
}

.cube-scene {
  width: 240px;
  height: 240px;
  perspective: 600px;
  margin: 50px auto;
}

.cube {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
}

.cube-face {
  position: absolute;
  width: 240px;
  height: 240px;
}

.cube-face img {
  width: 100%;
}

.cube-front {
  transform: rotateY(0deg) translateZ(120px);
}
.cube-back {
  transform: rotateY(180deg) translateZ(120px);
}
.cube-bottom {
  transform: rotateX(-90deg) translateZ(120px);
}
.cube-left {
  transform: rotateY(-90deg) translateZ(120px);
}
.cube-right {
  transform: rotateY(90deg) translateZ(120px);
}
.cube-top {
  transform: rotateX(90deg) translateZ(120px);
}

.cube {
  transform: rotateX(-25deg) rotateY(-25deg) rotateZ(10deg);
  transition: transform 2s ease-in-out;
}

.cube:hover {
  transform: rotateX(40deg) rotateY(-215deg) rotateZ(-10deg);
}

#cubes,
#cubes-title {
  display: none;
}
!

JS
!
999px

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