<h1>Pure CSS Text Carousel</h1>

<div class="content-slider">
  <div class="slider">
    <div class="mask">
      <ul>
        <li class="anim1">
          <div class="quote">Hello, this is a quote from a person.</div>
          <div class="source">- Person</div>
        </li>
        <li class="anim2">
          <div class="quote">Hello, this is a quote from another person.</div>
          <div class="source">- Another person</div>
        </li>
        <li class="anim3">
          <div class="quote">Hello, this is a quote from an animal.</div>
          <div class="source">- Animal</div>
        </li>
        <li class="anim4">
          <div class="quote">Hello, this is a quote from a plant.</div>
          <div class="source">- Plant</div>
        </li>
        <li class="anim5">
          <div class="quote">How do ya like that.</div>
          <div class="source">- Cassidy</div>
        </li>
      </ul>
    </div>
  </div>
</div>

html,
body {
  font-family: 'Droid Serif', serif;
}

h1 {
  font-size: 60px;
  text-align: center;
}

.content-slider {
  width: 100%;
  height: 360px;
}

.slider {
  height: 320px;
  width: 680px;
  margin: 40px auto 0;
  overflow: visible;
  position: relative;
}

.mask {
  overflow: hidden;
  height: 320px;
}

.slider ul {
  margin: 0;
  padding: 0;
  position: relative;
}

.slider li {
  width: 680px;
  height: 320px;
  position: absolute;
  top: -325px;
  list-style: none;
}

.slider .quote {
  font-size: 40px;
  font-style: italic;
}

.slider .source {
  font-size: 20px;
  text-align: right;
}

.slider li.anim1 {
  animation: cycle 15s linear infinite;
}

.slider li.anim2 {
  animation: cycle2 15s linear infinite;
}

.slider li.anim3 {
  animation: cycle3 15s linear infinite;
}

.slider li.anim4 {
  animation: cycle4 15s linear infinite;
}

.slider li.anim5 {
  animation: cycle5 15s linear infinite;
}

.slider:hover li {
  animation-play-state: paused;
}

@keyframes cycle {
  0% {
    top: 0px;
  }
  4% {
    top: 0px;
  }
  16% {
    top: 0px;
    opacity: 1;
    z-index: 0;
  }
  20% {
    top: 325px;
    opacity: 0;
    z-index: 0;
  }
  21% {
    top: -325px;
    opacity: 0;
    z-index: -1;
  }
  50% {
    top: -325px;
    opacity: 0;
    z-index: -1;
  }
  92% {
    top: -325px;
    opacity: 0;
    z-index: 0;
  }
  96% {
    top: -325px;
    opacity: 0;
  }
  100% {
    top: 0px;
    opacity: 1;
  }
}

@keyframes cycle2 {
  0% {
    top: -325px;
    opacity: 0;
  }
  16% {
    top: -325px;
    opacity: 0;
  }
  20% {
    top: 0px;
    opacity: 1;
  }
  24% {
    top: 0px;
    opacity: 1;
  }
  36% {
    top: 0px;
    opacity: 1;
    z-index: 0;
  }
  40% {
    top: 325px;
    opacity: 0;
    z-index: 0;
  }
  41% {
    top: -325px;
    opacity: 0;
    z-index: -1;
  }
  100% {
    top: -325px;
    opacity: 0;
    z-index: -1;
  }
}

@keyframes cycle3 {
  0% {
    top: -325px;
    opacity: 0;
  }
  36% {
    top: -325px;
    opacity: 0;
  }
  40% {
    top: 0px;
    opacity: 1;
  }
  44% {
    top: 0px;
    opacity: 1;
  }
  56% {
    top: 0px;
    opacity: 1;
    z-index: 0;
  }
  60% {
    top: 325px;
    opacity: 0;
    z-index: 0;
  }
  61% {
    top: -325px;
    opacity: 0;
    z-index: -1;
  }
  100% {
    top: -325px;
    opacity: 0;
    z-index: -1;
  }
}

@keyframes cycle4 {
  0% {
    top: -325px;
    opacity: 0;
  }
  56% {
    top: -325px;
    opacity: 0;
  }
  60% {
    top: 0px;
    opacity: 1;
  }
  64% {
    top: 0px;
    opacity: 1;
  }
  76% {
    top: 0px;
    opacity: 1;
    z-index: 0;
  }
  80% {
    top: 325px;
    opacity: 0;
    z-index: 0;
  }
  81% {
    top: -325px;
    opacity: 0;
    z-index: -1;
  }
  100% {
    top: -325px;
    opacity: 0;
    z-index: -1;
  }
}

@keyframes cycle5 {
  0% {
    top: -325px;
    opacity: 0;
  }
  76% {
    top: -325px;
    opacity: 0;
  }
  80% {
    top: 0px;
    opacity: 1;
  }
  84% {
    top: 0px;
    opacity: 1;
  }
  96% {
    top: 0px;
    opacity: 1;
    z-index: 0;
  }
  100% {
    top: 325px;
    opacity: 0;
    z-index: 0;
  }
}