.snowflake {
    position: fixed;
    top: -10px;
    z-index: 9999;
    background: white;
    border-radius: 50%;
    opacity: 0.8;
    animation: snowfall linear infinite;
    pointer-events: none;
}

@keyframes snowfall {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(360deg);
        opacity: 0;
    }
}