#websitecode-preloader {
    position: fixed;
    top:0; left:0; width:100%; height:100%;
    display:flex;
    justify-content:center;
    align-items:center;
    z-index:9999;
}
#websitecode-preloader img,
#websitecode-preloader video {
    max-width:200px;
    max-height:200px;
}