<div class="container">
  <p class="text">Falling Text</p>
</div>
@import url(http://fonts.googleapis.com/css?family=Gentium+Basic:400,700,400italic,700italic);

html, body {
  height: 100%;
} 

body {
  background-color: #F5F5F5;
  color: #555;
  font-size: 1.1em;
  font-family: 'Gentium Basic', serif;
}

.container {
  margin: 20px auto;
  min-width: 320px;
  max-width: 500px;
  height: 100%;
  overflow: hidden;
}

.text {
  font-size: 3em;
  font-weight: bold;
  color: #0099cc;
  -webkit-transform-origin: left center;
  -ms-transform-origin: left center;
  transform-origin: left center;
  -webkit-animation: fall 4s infinite;
  animation: fall 4s infinite;
}

@-webkit-keyframes fall {
  from {
    -webkit-transform: rotate(0) translateX(0);
    transform: rotate(0) translateX(0);
    opacity: 1;
  }
  to {
    -webkit-transform: rotate(90deg) translateX(200px);
    transform: rotate(90deg) translateX(200px);
    opacity: 0;
  }
}

@keyframes fall {
  from {
    -webkit-transform: rotate(0) translateX(0);
    transform: rotate(0) translateX(0);
    opacity: 1;
  }
  to {
    -webkit-transform: rotate(90deg) translateX(200px);
    transform: rotate(90deg) translateX(200px);
    opacity: 0;
  }
}