body {
    background-image: url('https://www.neetispace.in/pexels-bri-schneiter-28802-346529.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    position: relative;
}

body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.6); /* Adjust 0.6 for transparency level (0 = fully transparent, 1 = opaque). Use rgba(0, 0, 0, 0.6) for a darker tint if your image is light. */
    z-index: -1;
}