WooCommerce Product Gallery Vertical

.woocommerce-product-gallery {
    display: flex;
}

.woocommerce-product-gallery .flex-control-thumbs {
    order: -10;
}

.woocommerce div.product div.images .flex-control-thumbs li {
    width: 100%;
    padding-top: 0;
    padding-bottom: 5px;
}