/* CSS Document */
#snow {
  height: 100%;
  width: 100%;
  position: absolute;
  background-image: url(http://gdurl.com/dIoP),
  url(http://gdurl.com/G5Vp),
  url(http://gdurl.com/m9Yz);
  z-index: 1;
  pointer-events: none;
  -moz-animation: snow 10s linear infinite;
  -webkit-animation: snow 10s linear infinite;
  animation: snow 10s linear infinite;

}

@-moz-keyframes snow {
  0% { background-position: 0 0, 0 0, 0 0; }
  100% { background-position: 500px 1000px, 0 400px, 0 300px; }
}

@-webkit-keyframes snow {
  0% { background-position: 0 0, 0 0, 0 0; }
  100% { background-position: 500px 1000px, 0 400px, 0 300px; }
}

@keyframes snow {
  0% { background-position: 0 0, 0 0, 0 0; }
  100% { background-position: 500px 1000px, 0 400px, 0 300px; }
}