featured product showing custom3.0

<?php
                            $meta_query  = WC()->query->get_meta_query();
                            $tax_query   = WC()->query->get_tax_query();
                            $tax_query[] = array(
                                'taxonomy' => 'product_visibility',
                                'field'    => 'name',
                                'terms'    => 'featured',
                                'operator' => 'IN',
                            );
                            $args = array(
                                'post_type'           => 'product',
                                'post_status'         => 'publish',
                                'meta_query'          => $meta_query,
                                'tax_query'           => $tax_query,
                            );
                            $loop = new WP_Query($args);
                            while ($loop->have_posts()) : $loop->the_post();
                                global $product; ?>


                                <div class="best-sell-product">
                                    <div class="best-product-img">

                                        <?php
                                        if (has_post_thumbnail($loop->post->ID))
                                            echo get_the_post_thumbnail($loop->post->ID, 'shop_catalog');
                                        else
                                            echo '<a href="#"><img src="' . woocommerce_placeholder_img_src() . '" alt="product"/></a>';
                                        ?>
                                        <!--                                    <a href="#"><img-->
                                        <!--                                            src="-->
                                        <?php //bloginfo('template_url'); ?><!--/img/product/best-product-1.png"-->
                                        <!--                                            alt="product"></a>-->
                                    </div>
                                    <div class="best-product-content">
                                        <h2><a href="#"><?php the_title(); ?></a></h2>
                                        <h3><?php
                                            echo $product->get_price_html();
                                            woocommerce_template_loop_add_to_cart($loop->post, $product);
                                            ?></h3>
                                    </div>
                                </div>
                                <?php
                            endwhile;
                            wp_reset_query();
                            ?>