.hero-main-column1 {
    background-image: url('/local/templates/skat_new/assets/images/hero01.jpg');
}

.hero-main-column2 {
    background-image: url('/local/templates/skat_new/assets/images/hero02.jpg');
}
@media (max-width: 768px) {
    .hero-main-column2 {
        background-image: url('/local/templates/skat_new/assets/images/hero02-mobile.jpg');
    }
}