@-webkit-keyframes fade-in {   0% { opacity: 0.0; }   100% { opacity: 1; }   }
@-moz-keyframes    fade-in {   0% { opacity: 0.0; }   100% { opacity: 1; }   }
@-o-keyframes      fade-in {   0% { opacity: 0.0; }   100% { opacity: 1; }   }
@keyframes         fade-in {   0% { opacity: 0.0; }   100% { opacity: 1; }   }
 
body {
  -webkit-animation:  fade-in cubic-bezier(1, 0, .60, 0); /* Safari 4+ */
  -moz-animation: fade-in 1s cubic-bezier(1, 0, .60, 0); /* Fx 5+ */
  -o-animation: fade-in 1s cubic-bezier(1, 0, .60, 0); /* Opera 12+ */
  animation: fade-in 1s cubic-bezier(1, 0, .60, 0); /* IE 10+, Fx 29+ */
}