:root {
    --nav-hover: #f53e2a;
    --article-bg: #ffdfb3;
    --background: #fffbf0;
    --button: #ffb10a;
}
#body-background {
    background: url("../images/BG_autumn.JPG") no-repeat fixed;
}
@media (max-width: 600px) {
    #body-background {
        background: #fffbf0;
    }
}