.layout-floating--400:after {
    background-image: url('../images/400.jpg');
}

.layout-floating--403:after {
    background-image: url('../images/403.jpg');
}

.layout-floating--404:after {
    background-image: url('../images/404.jpg');
}

.layout-floating--500:after {
    background-image: url('../images/500.jpg');
}

.layout-floating--unavailable:after {
    background-image: url('../images/unavailable.jpg');
}