#snow {
	position: absolute;
	width: 100%;
	height: 100%;
	background-image: url("snow_1.png"), url("snow_2.png"), url("snow_3.png");
	-webkit-animation: snow 20s linear infinite;
	-moz-animation: snow 20s linear infinite;
	-ms-animation: snow 20s linear infinite;
	animation: snow 20s linear infinite;
}

@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;
	}
}