.snowflake {
    position: fixed;
    top: -5px;
    background: white;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.9;
    z-index: 999999;
}

/* ground accumulation container */
#snow-ground {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100vw;
    height: 20px;
    pointer-events: none;
    z-index: 999998;
    overflow: hidden;
}

/* dots on the ground */
.snow-ground-dot {
    position: absolute;
    bottom: 0;
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    opacity: 1;
    transition: opacity 2s linear;
}