:root {
    body.body404 {
        position: relative;
        background: url("/staticfiles/img/school/errors/404.png") left top no-repeat #f7f7f7;
        background-size: 100vw auto;
        margin: 0;
        padding: 0;
        height: 100vh;
        overflow: hidden;
    }
    body.body500 {
        position: relative;
        background: url("/staticfiles/img/school/errors/500.png") left top no-repeat #f7f7f7;
        background-size: 100vw auto;
        margin: 0;
        padding: 0;
        height: 100vh;
        overflow: hidden;
    }
}