Fade in animation

fadein.css

/* Fade in animation */

@-webkit-keyframes fadeIn {
 0% {
   opacity: 0;
 }
 100% {
   opacity: 1;
 }
}

@-moz-keyframes fadeIn {
 0% {
   opacity: 0;
 }
 100% {
   opacity: 1;
 }
}

#content {
  -webkit-animation-name: fadeIn;
  -webkit-animation-timing-function: ease-out;
  -webkit-animation-duration: 0.5s;
  -moz-animation-name: fadeIn;
  -moz-animation-timing-function: ease-out;
  -moz-animation-duration: 0.5s;
}