.site-grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 2147483000;
    background-image: url('../images/grain.png');
    background-size: 256px 256px;
    background-repeat: repeat;
    opacity: 0.09;
    transform: translate3d(0, 0, 0);
    will-change: transform;
    contain: strict;
    backface-visibility: hidden;
}
html[data-theme="light"] .site-grain {
    opacity: 0.08;
}