#alessi-modules .collection-product {
    flex: 0 0 calc((100% - 3 * 20px) / 4);
}

.usp-strip { 
    margin-bottom: 50px;
}

@media (max-width: 767px) { 
    #alessi-modules .collection-product {
        flex: 0 0 calc((100% - 20px) / 2);
    }

    .images-gallery { 
        column-count: 2;
        column-gap: 1px;
    }

    .image-gallery-item {
        margin-bottom: 1px; 
    }
}