.rb_gallery_grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(20%, 1fr));
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
    padding-top:40px;
    padding-bottom:40px;
}

.gallery-item-img img {object-fit: cover; height:150px;}

@media all and (max-width:1024px) {
    .rb_gallery_grid {
        grid-template-columns: repeat(auto-fill, minmax(35% ,1fr));
        gap: 20px;
    }
}