@-webkit-keyframes fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@-moz-keyframes fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@-ms-keyframes fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
.documentationpage .keyframes_example {
  width: 60px;
  height: 60px;
  background-color: #A01303;
  animation: fade 1s infinite alternate;
}