.responsive{
    background: linear-gradient(to bottom, rgba(169,169,169, 0.5),rgba(169,169,169, 1));
}

#responsive-img {
    margin-top: 40px;
}

@media (max-width: 1199px) {
    #responsive-img {
        margin-top: 70px;
    }
}
@media (max-width: 991px) {
    #responsive-img {
        margin: 30px auto;
    }
}