.snowflakes {
    width: 100%;
    height: calc(100% + 90px);
    position: absolute;
    top: -90px;
    left: 0;
    overflow: hidden;
    pointer-events:none;
}

i, i:after, i:before {
    background: white;
}

i {
    display: inline-block;
    animation: snowflakes 3s linear 2s infinite;
    position: relative;
}

    i:after, i:before {
        height: 100%;
        width: 100%;
        content: ".";
        position: absolute;
        top: 0px;
        left: 0px;
        transform: rotate(120deg);
    }

    i:before {
        transform: rotate(240deg);
    }

@keyframes snowflakes {
    0% {
        transform: translate3d(0,0,0) rotate(0deg) scale(0.6);
    }

    100% {
        transform: translate3d(15px, 1200px, 0px) rotate(360deg) scale(0.6);
    }

    ;
}

.snowflakes i:nth-child(3n) {
    width: 16px;
    height: 4px;
    animation-duration: 4s;
    animation-iteration-count: infinite;
    transform-origin: right -45px;
}

.snowflakes i:nth-child(3n+1) {
    width: 24px;
    height: 6px;
    animation-duration: 6s;
    animation-iteration-count: infinite;
    transform-origin: right -30px;
}

.snowflakes i:nth-child(3n+2) {
    width: 32px;
    height: 8px;
    animation-duration: 8s;
    animation-iteration-count: infinite;
    transform-origin: right -15px;
}

/* different delays so they don't all start at the same time */
.snowflakes i:nth-child(7n) {
    opacity: .3;
    animation-delay: 0s;
    animation-timing-function: ease-in;
}

.snowflakes i:nth-child(7n+1) {
    opacity: .4;
    animation-delay: 1s;
    animation-timing-function: ease-out;
}

.snowflakes i:nth-child(7n+2) {
    opacity: .5;
    animation-delay: 1.5s;
    animation-timing-function: linear;
}

.snowflakes i:nth-child(7n+3) {
    opacity: .6;
    animation-delay: 2s;
    animation-timing-function: ease-in;
}

.snowflakes i:nth-child(7n+4) {
    opacity: .7;
    animation-delay: 2.5s;
    animation-timing-function: linear;
}

.snowflakes i:nth-child(7n+5) {
    opacity: .8;
    animation-delay: 3s;
    animation-timing-function: ease-out;
}

.snowflakes i:nth-child(7n+6) {
    opacity: .9;
    animation-delay: 3.5s;
    animation-timing-function: ease-in;
}

.santahat {
    background: url(/santa-hat.png) no-repeat;
    width: 64px;
    height: 64px;
    position: absolute;
    top: -5px;
    left: -35px;
    background-size:cover;
}

header:has(.santahat) {
    padding-top:20px;
}