body {

    margin: 0;

    overflow: hidden;

    background-color: #ccc;

}



.snowflakes {

    position: fixed;

    top: 0;

    left: 0;

    pointer-events: none;

}



.snowflake {

    position: absolute;

    width: 10px;

    height: 10px;

    background: #fff;

    border-radius: 50%;

    animation: snowfall linear infinite;

}



@keyframes snowfall {

    0% {

        transform: translateY(-100vh);

    }



    100% {

        transform: translateY(100vh);

    }

}