.snowflake{position:fixed;top:-50px;z-index:9999;user-select:none;cursor:default;animation-name:snowfall;animation-timing-function:linear;animation-iteration-count:1;animation-fill-mode:forwards;color:#fff;font-size:1em;text-shadow:0 0 1px rgba(255,255,255,.9)}@keyframes snowfall{0%{transform:translate3d(0,0,0) rotate(0deg);opacity:0}5%{opacity:1}95%{opacity:1}100%{transform:translate3d(var(--snowflake-drift),calc(100vh + 50px),0) rotate(360deg);opacity:0}}.snowflake--small{font-size:.6em}.snowflake--medium{font-size:1em}.snowflake--large{font-size:1.4em}