#preloader {
    opacity: 0.8;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 999;
    width: 100%;
    height: 100%;
    overflow: visible;
    background: #333 url('https://res.cloudinary.com/lmapp/image/upload/v1533067988/preloader.svg') no-repeat center center;
}