.snowflake {
    position: fixed;
    top: -50px;
    background-repeat: no-repeat;
    background-size: contain;
    opacity: 0.9;
    pointer-events: none;
    z-index: 999;
    animation-name: snowfall;
    animation-timing-function: linear;
}

@keyframes snowfall {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.6;
    }
    100% {
        transform: translateY(110vh) rotate(360deg);
        opacity: 0.1;
    }
}