.zdcb-images-grid-block .images-wrapper .image img{
  width: 100%;
}
@media (min-width: 1200px) {
    .zdcb-images-grid-block.is-style-4-columns .images-wrapper .category-item, .zdcb-images-grid-block.is-style-4-columns .images-wrapper .image {
        flex: 0 0 22%;
    }
}
@media (min-width: 768px) {
    .zdcb-images-grid-block .images-wrapper .image {
        flex: 0 0 30%;
    }
}