.nb-product-bulk-boxes {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

@media (max-width: 1440px) {
    .nb-product-bulk-boxes {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 991px) {
    .nb-product-bulk-boxes {
        grid-template-columns: 1fr;
    }
}