.snowflake{position:fixed;top:-20px;z-index:900;color:#fff;-webkit-user-select:none;-moz-user-select:none;user-select:none;pointer-events:none;animation-name:fall;animation-timing-function:linear;animation-iteration-count:infinite;opacity:.8}@keyframes fall{0%{transform:translateY(0) translateX(0)}25%{transform:translateY(25vh) translateX(15px)}50%{transform:translateY(50vh) translateX(-15px)}75%{transform:translateY(75vh) translateX(15px)}to{transform:translateY(110vh) translateX(0)}}