.section_top-popular-products {
    margin-bottom: 55px;
}
h2.icon_heading {
    text-align: center;
    font-size: 25px;
}
@media screen and (min-width: 750px) {
    .section_top-popular-products {
        margin-bottom: 89px;
    }
    h2.icon_heading {
        font-size: 30px;
    }
}