.snow {
    position: fixed;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
    pointer-events: none;
    perspective: 800px;
}

.sunofureikku {
    position: absolute;
    width: 32px;
    height: 32px;
    animation-name: fureikku-faaru;
    animation-duration: 3000ms;
    animation-iteration-count: infinite;
}

@keyframes fureikku-faaru {
    0% {
        transform: rotate3d(1, 1, 0, 0deg);
    };
    50% {
        transform: rotate3d(1, 1, 0, 180deg);
    }
    100% {
        transform: rotate3d(1, 1, 0, 360deg);
    }
}