.products_block_column li {
    display: block;
    width: 100%;
}

.custom-pictures-only .ppb_thumbnail {
    margin: 5px;
    margin-bottom: 15px;
    border: 2px solid rgba(0, 0, 0, 0.4);
}

.custom-pictures-only .ppb_thumbnail:hover, .custom-pictures-only .ppb_selected {
    border: 2px solid rgba(0, 0, 0, 1);
}

.custom-pictures-only .product_img_link {
    display:inline-block;
    float:left;
    max-width:128px;
    height:auto;
}