.main_img {
    width: 100%;
    margin-left: 20px;
}

.main_img_mob {
    width: 100%;
    padding-top: 50px;
}

@media (min-width: 700px) {
    .main_img_mob {
        display: none;
    }
}

@media (max-width: 992px) {
    .qwe {
        flex-wrap: wrap;
    }

    .main_img {
        display: none;
    }
}