.scanlines::before {
    content: "";
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-image: repeating-linear-gradient(
        to bottom,
        rgba(255,255,255,0.02) 0px,
        rgba(255,255,255,0.02) 1px,
        transparent 1px,
        transparent 2px
    );
    z-index: 100;
    pointer-events: none;
}