Edit file File name : class-wc-twenty-sixteen.php Content :<?php /** * Twenty Sixteen support. * * @since 3.3.0 * @package WooCommerce\Classes */ defined( 'ABSPATH' ) || exit; /** * WC_Twenty_Sixteen class. */ class WC_Twenty_Sixteen { /** * Theme init. */ public static function init() { // Remove default wrappers. remove_action( 'woocommerce_before_main_content', 'woocommerce_output_content_wrapper' ); remove_action( 'woocommerce_after_main_content', 'woocommerce_output_content_wrapper_end' ); // Add custom wrappers. add_action( 'woocommerce_before_main_content', array( __CLASS__, 'output_content_wrapper' ) ); add_action( 'woocommerce_after_main_content', array( __CLASS__, 'output_content_wrapper_end' ) ); // Declare theme support for features. add_theme_support( 'wc-product-gallery-zoom' ); add_theme_support( 'wc-product-gallery-lightbox' ); add_theme_support( 'wc-product-gallery-slider' ); add_theme_support( 'woocommerce', array( 'thumbnail_image_width' => 250, 'single_image_width' => 400, ) ); } /** * Open wrappers. */ public static function output_content_wrapper() { echo '<div id="primary" class="content-area twentysixteen"><main id="main" class="site-main" role="main">'; } /** * Close wrappers. */ public static function output_content_wrapper_end() { echo '</main></div>'; } } WC_Twenty_Sixteen::init(); Save