.detail_about_img {
    margin-top: 30px;
    width: 100%;
}

#section1,
#section2,
#section3,
#section4,
#section5 {
    scroll-margin-top: 50px;
}

@media (max-width: 1200px) {
    .detail_about_img {
        margin-top: 20px;
    }
}