.ad_block img{
    width: 100%;
}

.swiper-container.ad_blocks {
    margin-bottom: 45px !important;
}

.ad_block img.mobile{
    display: none;
}

@media only screen and (max-width: 700px) {
    .ad_block img.desktop{
        display: none;
    }
    .ad_block img.mobile{
        display: block;
    }
}