#snowfall{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:5}.snow{position:absolute;top:-10px;background:#fff;border-radius:50%;opacity:.8;filter:blur(.3px);animation-name:fall;animation-timing-function:linear}@keyframes fall{to{transform:translate(calc(-50px + 100px * var(--wind)),110vh)}}