.scanlines {
    
    position: relative;
}
.scanlines:before,
.scanlines:after {
    display: block;
    pointer-events: none;
    content: "";
    position: absolute;
}

.scanlines:after {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 2147483648;
    background: linear-gradient(
        to bottom,
        transparent 50%,
        rgba(0, 0, 0, 0.17) 51% /* Reduced opacity for a less intense effect */
    );
    background-size: 100% 4px;
    animation: scanlines 0.3s steps(60) infinite;
}

/* ANIMATE UNIQUE SCANLINE */

@keyframes scanlines {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 0 100%;
    }
}