.snowflake { 
    position: absolute; 
    top: -10vh; 
    font-size: 1em; 
    color: rgb(255, 255, 255);
    }
@keyframes fall { 
    from {
        transform: translate3d(0, 0, 0)
    }
    to { 
        transform: translate3d(0, 110vh, 0); 
    }
}
.snowflake:nth-child(1) {
    font-size: 1.7em;
    left: 42vw;
    animation: fall 6s linear infinite;
    animation-delay: 5s;
}
.snowflake:nth-child(2) {
    font-size: 1.2em;
    left: 67vw;
    animation: fall 6s linear infinite;
    animation-delay: 6s;
}
.snowflake:nth-child(3) {
    font-size: 1.4em;
    left: 10vw;
    animation: fall 10s linear infinite;
    animation-delay: 10s;
}
.snowflake:nth-child(4) {
    font-size: 1em;
    left: 20vw;
    animation: fall 6s linear infinite;
    animation-delay: 1s;
}
.snowflake:nth-child(5) {
    font-size: 1.2em;
    left: 69vw;
    animation: fall 9s linear infinite;
    animation-delay: 8s;
}
.snowflake:nth-child(6) {
    font-size: 1em;
    left: 51vw;
    animation: fall 8s linear infinite;
    animation-delay: 6s;
}
.snowflake:nth-child(7) {
    font-size: 2em;
    left: 61vw;
    animation: fall 10s linear infinite;
    animation-delay: 8s;
}
.snowflake:nth-child(8) {
    font-size: 1.5em;
    left: 80vw;
    animation: fall 6s linear infinite;
    animation-delay: 4s;
}
.snowflake:nth-child(9) {
    font-size: 1.1em;
    left: 2vw;
    animation: fall 9s linear infinite;
    animation-delay: 9s;
}
.snowflake:nth-child(10) {
    font-size: 1.5em;
    left: 27vw;
    animation: fall 5s linear infinite;
    animation-delay: 7s;
}
.snowflake:nth-child(11) {
    font-size: 1.6em;
    left: 10vw;
    animation: fall 5s linear infinite;
    animation-delay: 6s;
}
.snowflake:nth-child(12) {
    font-size: 1.3em;
    left: 55vw;
    animation: fall 6s linear infinite;
    animation-delay: 0s;
}
.snowflake:nth-child(13) {
    font-size: 1.1em;
    left: 34vw;
    animation: fall 8s linear infinite;
    animation-delay: 5s;
}
.snowflake:nth-child(14) {
    font-size: 1.6em;
    left: 95vw;
    animation: fall 5s linear infinite;
    animation-delay: 6s;
}
.snowflake:nth-child(15) {
    font-size: 1.7em;
    left: 29vw;
    animation: fall 10s linear infinite;
    animation-delay: 10s;
}
.snowflake:nth-child(16) {
    font-size: 1.3em;
    left: 82vw;
    animation: fall 9s linear infinite;
    animation-delay: 6s;
}
.snowflake:nth-child(17) {
    font-size: 1em;
    left: 31vw;
    animation: fall 7s linear infinite;
    animation-delay: 3s;
}
.snowflake:nth-child(18) {
    font-size: 1.1em;
    left: 75vw;
    animation: fall 8s linear infinite;
    animation-delay: 2s;
}
.snowflake:nth-child(19) {
    font-size: 1.9em;
    left: 45vw;
    animation: fall 10s linear infinite;
    animation-delay: 0s;
}
.snowflake:nth-child(20) {
    font-size: 1.3em;
    left: 84vw;
    animation: fall 7s linear infinite;
    animation-delay: 1s;
}