.ad-banner {
    margin: 15px 0;
    text-align: center;
}

.ad-banner a {
    display: inline-block;
    max-width: 100%;
}

.ad-banner-image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.ad-banner-header {
    margin: 10px 0;
}

.ad-banner-after_slider {
    margin: 20px 0;
}

@media (max-width: 767px) {
    .ad-banner {
        margin: 10px 0;
    }
}