#snow {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  width: 100%;
  height: 100%;
  background-image: url("../../images/snow_1.png"), url("../../images/snow_2.png"), url("../../images/snow_3.png");
  background-repeat: repeat;
  -webkit-animation: snow 20s linear infinite;
  -moz-animation: snow 20s linear infinite;
  -ms-animation: snow 20s linear infinite;
  animation: snow 20s linear infinite;
  z-index: 10000000;
}

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

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

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

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