@media only screen and (max-width: 1920px) {
        body#body-login { background-image: url('https://w.wallhaven.cc/full/m9/wallhaven-m9dyey.jpg') !important;}
    }
    @media only screen and (min-width: 1921px) and (max-width: 2560px) {
        body#body-login { background-image: url('https://w.wallhaven.cc/full/8x/wallhaven-8x8z22.jpg') !important;}
    }
    @media only screen and (min-width: 2561px) {
        body#body-login { background-image: url('https://w.wallhaven.cc/full/4o/wallhaven-4ok2gp.jpg') !important;}
    }