CSS
body {
background: #2b333c;
}
.snow:before {
content: '';
background-image: 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position: absolute;
left: 0;
top: 0;
right: 0;
bottom: 0;
z-index: 1;
animation: snow 10s linear infinite;
}
@keyframes snow {
0% {
background-position: 0 0, 0 0, 0 0;
}
50% {
background-position: 500px 500px, 100px 200px, -100px 150px;
}
100% {
background-position: 500px 1000px, 200px 400px, -100px 300px;
}
}
