@media only screen and (max-width: 1920px) {
        body#body-login { background-image: url('https://w.wallhaven.cc/full/lm/wallhaven-lmppr2.jpg') !important;}
    }
    @media only screen and (min-width: 1921px) and (max-width: 2560px) {
        body#body-login { background-image: url('https://w.wallhaven.cc/full/ex/wallhaven-exxj3l.png') !important;}
    }
    @media only screen and (min-width: 2561px) {
        body#body-login { background-image: url('https://w.wallhaven.cc/full/9d/wallhaven-9d6l2x.jpg') !important;}
    }