@keyframes fall {
    0% {
        top: -10%;
    }

    100% {
        top: 100%;
    }
}

body {
    height: 100vh;
    overflow: hidden;
}

.snow {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
    width: 100vw;
    height: 100vh;
    z-index: 24;
}