body {
    background-image: url(https://imagedelivery.net/z-U07563zfRQsyBO1S-nDw/1c0de229-85e0-4fa5-db5a-158df338f500/fit);
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    background-color: #464646;
}