Thanks! I went to cPanel/file manager/Web Root (public_html/www), used Code Editor to edit wp-content/themes/neighborhood/woocommerce/loop/add-to-cart.php, and then saved changes. However my website is not reflected with the changes. Is there any step I am missing?
Sorry I wanted to edit the single product page, not the thumbnail hover on the shop page. Should I edit other line rather then line 48 in neighborhood/woocommerce/loop/add-to-cart.php?