Change title heading tag of sidebar on single prroduct page

Hi @depchanh2019,

Would you please try adding this custom PHP code to your site

add_filter('dynamic_sidebar_params', 'function_widget_title');
function function_widget_title($params) {
    $params[0]['before_title'] =  '<h3 class="widget-title">' ;
    $params[0]['after_title'] =  '</h3>' ;
    return $params;
}

?Please refer to this doc to know how to add custom PHP code in Astra.
?
?I hope that will help.

??Kind regards,
?Herman ??

Wow, It worked perfectly for me! Thanks you very much.

Can you help me change heading tag for this one:

https://ibb.co/pXz3LPw
https://ibb.co/FWCYnqk

Here is url:
https://vietnamcastiron.com/product/garden-pole/
https://vietnamcastiron.com/product-category/lamp-post/

Hi @depchanh2019,

Please try the following custom PHP code

if ( ! function_exists( 'woocommerce_template_loop_product_title' ) ) {
    function woocommerce_template_loop_product_title() {
        echo '<h3 class="woocommerce-loop-product__title">' . get_the_title() . '</h3>';
    }
}

?I hope it helps.

??Kind regards,
?Herman ??

Thanks Herman, it helped me solve problems!

Hi @depchanh2019,

I am very pleased to know the code works for you.

?Do let us know if there’s anything else we can help you with.

??Have a nice day and stay safe!

??Kind regards,
?Herman ??