.banner_main {
    background-image: url('/cta/img/banner_main_desktop.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 400px;
}

@media (max-width: 575.98px) {
    .banner_main {
        background-image: url('/cta/img/banner_main_mobile.jpg');
    }
}