.banner-be-desktop { display: block; }
.banner-be-mobile { display: none; }
@media (min-width: 600px) and (max-width: 1024px) {
    .banner-be {
        margin-top: 50px;
    }
}
@media (max-width: 480px) {
    .banner-be {
        margin-top: 50px;
    }
    .banner-be-desktop { display: none; }
    .banner-be-mobile { display: block; }
}