html, body {
    padding: 0;
    margin: 0;
    width: 100vw;
    height: 100vh;
    position: relative;
    overflow: hidden;
    background: linear-gradient(#123, #111);
}
.snowflake {
    --size: 1vw;
    width: var(--size);
    height: var(--size);
    background: white;
    border-radius: 50%;
    position: absolute;
    top: -5vh;
}
@keyframes snowfall {
    0% {
        transform: translate3d(var(--left-ini), 0, 0);
   }
    100% {
        transform: translate3d(var(--left-end), 110vh, 0);
   }
}
.snowflake:nth-child(1) {
    --size: 0.4vw;
    --left-ini: 9vw;
    --left-end: 4vw;
    left: 3vw;
    animation: snowfall 14s linear infinite;
    animation-delay: -4s;
}
.snowflake:nth-child(2) {
    --size: 0.2vw;
    --left-ini: -2vw;
    --left-end: 3vw;
    left: 37vw;
    animation: snowfall 9s linear infinite;
    animation-delay: -7s;
}
.snowflake:nth-child(3) {
    --size: 0.4vw;
    --left-ini: -3vw;
    --left-end: 0vw;
    left: 75vw;
    animation: snowfall 9s linear infinite;
    animation-delay: -7s;
}
.snowflake:nth-child(4) {
    --size: 0.2vw;
    --left-ini: 1vw;
    --left-end: 4vw;
    left: 6vw;
    animation: snowfall 11s linear infinite;
    animation-delay: -8s;
}
.snowflake:nth-child(5) {
    --size: 0.4vw;
    --left-ini: 4vw;
    --left-end: 0vw;
    left: 62vw;
    animation: snowfall 7s linear infinite;
    animation-delay: -10s;
}
.snowflake:nth-child(6) {
    --size: 0.4vw;
    --left-ini: 7vw;
    --left-end: 5vw;
    left: 68vw;
    animation: snowfall 13s linear infinite;
    animation-delay: -7s;
}
.snowflake:nth-child(7) {
    --size: 0.4vw;
    --left-ini: -5vw;
    --left-end: 2vw;
    left: 55vw;
    animation: snowfall 15s linear infinite;
    animation-delay: -2s;
}
.snowflake:nth-child(8) {
    --size: 0.4vw;
    --left-ini: -7vw;
    --left-end: -8vw;
    left: 61vw;
    animation: snowfall 12s linear infinite;
    animation-delay: -8s;
}
.snowflake:nth-child(9) {
    --size: 0.4vw;
    --left-ini: -3vw;
    --left-end: -4vw;
    left: 54vw;
    animation: snowfall 9s linear infinite;
    animation-delay: -4s;
}
.snowflake:nth-child(10) {
    --size: 0.4vw;
    --left-ini: 10vw;
    --left-end: 7vw;
    left: 99vw;
    animation: snowfall 11s linear infinite;
    animation-delay: -6s;
}
.snowflake:nth-child(11) {
    --size: 0.4vw;
    --left-ini: 10vw;
    --left-end: -8vw;
    left: 84vw;
    animation: snowfall 14s linear infinite;
    animation-delay: -7s;
}
.snowflake:nth-child(12) {
    --size: 0.4vw;
    --left-ini: 2vw;
    --left-end: 10vw;
    left: 35vw;
    animation: snowfall 7s linear infinite;
    animation-delay: -5s;
}
.snowflake:nth-child(13) {
    --size: 0.2vw;
    --left-ini: -9vw;
    --left-end: 4vw;
    left: 37vw;
    animation: snowfall 8s linear infinite;
    animation-delay: -10s;
}
.snowflake:nth-child(14) {
    --size: 0.4vw;
    --left-ini: -6vw;
    --left-end: -1vw;
    left: 23vw;
    animation: snowfall 12s linear infinite;
    animation-delay: -9s;
}
.snowflake:nth-child(15) {
    --size: 0.2vw;
    --left-ini: 7vw;
    --left-end: 10vw;
    left: 24vw;
    animation: snowfall 6s linear infinite;
    animation-delay: -10s;
}
.snowflake:nth-child(16) {
    --size: 0.2vw;
    --left-ini: -8vw;
    --left-end: -3vw;
    left: 79vw;
    animation: snowfall 13s linear infinite;
    animation-delay: -10s;
}
.snowflake:nth-child(17) {
    --size: 0.4vw;
    --left-ini: -2vw;
    --left-end: -4vw;
    left: 88vw;
    animation: snowfall 6s linear infinite;
    animation-delay: -5s;
}
.snowflake:nth-child(18) {
    --size: 0.4vw;
    --left-ini: -3vw;
    --left-end: -5vw;
    left: 100vw;
    animation: snowfall 13s linear infinite;
    animation-delay: -1s;
}
.snowflake:nth-child(19) {
    --size: 0.4vw;
    --left-ini: -8vw;
    --left-end: -3vw;
    left: 24vw;
    animation: snowfall 12s linear infinite;
    animation-delay: -4s;
}
.snowflake:nth-child(20) {
    --size: 0.2vw;
    --left-ini: 8vw;
    --left-end: 9vw;
    left: 71vw;
    animation: snowfall 7s linear infinite;
    animation-delay: -3s;
}
.snowflake:nth-child(21) {
    --size: 0.2vw;
    --left-ini: 0vw;
    --left-end: -6vw;
    left: 48vw;
    animation: snowfall 15s linear infinite;
    animation-delay: -7s;
}
.snowflake:nth-child(22) {
    --size: 0.2vw;
    --left-ini: 7vw;
    --left-end: 7vw;
    left: 74vw;
    animation: snowfall 14s linear infinite;
    animation-delay: -2s;
}
.snowflake:nth-child(23) {
    --size: 0.2vw;
    --left-ini: 5vw;
    --left-end: 6vw;
    left: 96vw;
    animation: snowfall 12s linear infinite;
    animation-delay: -5s;
}
.snowflake:nth-child(24) {
    --size: 0.2vw;
    --left-ini: 2vw;
    --left-end: 2vw;
    left: 26vw;
    animation: snowfall 13s linear infinite;
    animation-delay: -1s;
}
.snowflake:nth-child(25) {
    --size: 0.4vw;
    --left-ini: 4vw;
    --left-end: 8vw;
    left: 10vw;
    animation: snowfall 11s linear infinite;
    animation-delay: -1s;
}
.snowflake:nth-child(26) {
    --size: 0.4vw;
    --left-ini: 3vw;
    --left-end: 5vw;
    left: 33vw;
    animation: snowfall 8s linear infinite;
    animation-delay: -5s;
}
.snowflake:nth-child(27) {
    --size: 0.4vw;
    --left-ini: -6vw;
    --left-end: -7vw;
    left: 58vw;
    animation: snowfall 10s linear infinite;
    animation-delay: -3s;
}
.snowflake:nth-child(28) {
    --size: 0.4vw;
    --left-ini: -3vw;
    --left-end: 5vw;
    left: 75vw;
    animation: snowfall 6s linear infinite;
    animation-delay: -6s;
}
.snowflake:nth-child(29) {
    --size: 0.4vw;
    --left-ini: 10vw;
    --left-end: -6vw;
    left: 31vw;
    animation: snowfall 15s linear infinite;
    animation-delay: -8s;
}
.snowflake:nth-child(30) {
    --size: 0.2vw;
    --left-ini: -6vw;
    --left-end: -5vw;
    left: 97vw;
    animation: snowfall 15s linear infinite;
    animation-delay: -1s;
}
.snowflake:nth-child(31) {
    --size: 0.2vw;
    --left-ini: -3vw;
    --left-end: 3vw;
    left: 36vw;
    animation: snowfall 10s linear infinite;
    animation-delay: -4s;
}
.snowflake:nth-child(32) {
    --size: 0.2vw;
    --left-ini: 10vw;
    --left-end: 9vw;
    left: 84vw;
    animation: snowfall 9s linear infinite;
    animation-delay: -4s;
}
.snowflake:nth-child(33) {
    --size: 0.2vw;
    --left-ini: 0vw;
    --left-end: 8vw;
    left: 6vw;
    animation: snowfall 7s linear infinite;
    animation-delay: -10s;
}
.snowflake:nth-child(34) {
    --size: 0.2vw;
    --left-ini: -7vw;
    --left-end: -7vw;
    left: 95vw;
    animation: snowfall 7s linear infinite;
    animation-delay: -7s;
}
.snowflake:nth-child(35) {
    --size: 0.4vw;
    --left-ini: 6vw;
    --left-end: 4vw;
    left: 9vw;
    animation: snowfall 8s linear infinite;
    animation-delay: -5s;
}
.snowflake:nth-child(36) {
    --size: 0.2vw;
    --left-ini: -7vw;
    --left-end: 3vw;
    left: 72vw;
    animation: snowfall 15s linear infinite;
    animation-delay: -5s;
}
.snowflake:nth-child(37) {
    --size: 0.2vw;
    --left-ini: 6vw;
    --left-end: -2vw;
    left: 67vw;
    animation: snowfall 11s linear infinite;
    animation-delay: -10s;
}
.snowflake:nth-child(38) {
    --size: 0.2vw;
    --left-ini: 2vw;
    --left-end: -8vw;
    left: 31vw;
    animation: snowfall 14s linear infinite;
    animation-delay: -10s;
}
.snowflake:nth-child(39) {
    --size: 0.2vw;
    --left-ini: 2vw;
    --left-end: 1vw;
    left: 50vw;
    animation: snowfall 13s linear infinite;
    animation-delay: -2s;
}
.snowflake:nth-child(40) {
    --size: 0.4vw;
    --left-ini: 9vw;
    --left-end: 0vw;
    left: 47vw;
    animation: snowfall 13s linear infinite;
    animation-delay: -5s;
}
.snowflake:nth-child(41) {
    --size: 0.4vw;
    --left-ini: -2vw;
    --left-end: -3vw;
    left: 88vw;
    animation: snowfall 10s linear infinite;
    animation-delay: -7s;
}
.snowflake:nth-child(42) {
    --size: 0.2vw;
    --left-ini: -8vw;
    --left-end: -8vw;
    left: 46vw;
    animation: snowfall 8s linear infinite;
    animation-delay: -6s;
}
.snowflake:nth-child(43) {
    --size: 0.2vw;
    --left-ini: 2vw;
    --left-end: 3vw;
    left: 11vw;
    animation: snowfall 14s linear infinite;
    animation-delay: -7s;
}
.snowflake:nth-child(44) {
    --size: 0.4vw;
    --left-ini: -8vw;
    --left-end: -7vw;
    left: 74vw;
    animation: snowfall 10s linear infinite;
    animation-delay: -5s;
}
.snowflake:nth-child(45) {
    --size: 0.2vw;
    --left-ini: 5vw;
    --left-end: -2vw;
    left: 28vw;
    animation: snowfall 6s linear infinite;
    animation-delay: -6s;
}
.snowflake:nth-child(46) {
    --size: 0.4vw;
    --left-ini: 6vw;
    --left-end: 3vw;
    left: 83vw;
    animation: snowfall 10s linear infinite;
    animation-delay: -8s;
}
.snowflake:nth-child(47) {
    --size: 0.4vw;
    --left-ini: 2vw;
    --left-end: -2vw;
    left: 50vw;
    animation: snowfall 13s linear infinite;
    animation-delay: -8s;
}
.snowflake:nth-child(48) {
    --size: 0.4vw;
    --left-ini: 6vw;
    --left-end: 7vw;
    left: 86vw;
    animation: snowfall 8s linear infinite;
    animation-delay: -6s;
}
.snowflake:nth-child(49) {
    --size: 0.4vw;
    --left-ini: 10vw;
    --left-end: -6vw;
    left: 76vw;
    animation: snowfall 6s linear infinite;
    animation-delay: -8s;
}
.snowflake:nth-child(50) {
    --size: 0.4vw;
    --left-ini: -3vw;
    --left-end: 3vw;
    left: 36vw;
    animation: snowfall 9s linear infinite;
    animation-delay: -8s;
}
/* added small blur every 6 snowflakes*/
.snowflake:nth-child(6n) {
    filter: blur(1px);
}