Hi, Hippolyte 

Sorry for the delay

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Can you show me how you created the pricing table?

If you used custom HTML, you should be able to add an ID to any button of your WP page.

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Can you send me a link to a page where you have the pricing table?

I can't view the related page - maybe you set it only for logged in users to see, or Admin only?

It would also be good if we can inspect the back -end of your setup, just to review all the settings.

Please provide me a temporary WP-admin (administrator) user for your site where this happens, so we could log in and take a look ‘from the inside’ as that’s the most efficient way to see and resolve the issue. 

We do not interfere with any data or anything else except for the plugin (in case that’s a production version of the site), and of course, we do not provide login data to third parties. 

You can write credentials here just check PRIVATE Reply so nobody can see them except us.

Thank you

Hi, Hippolyte 

Apologies for all the waiting time. 

I have been advised on this.

This widget is made and supported by Elementor, so it would be best to ask for their support on this query.

We know how to add a class on "Button" widget, and we added this in our tutorials on our Documentation.

If there is another way to add the class, you can do so,  but if you require assistance on that,

 if you can be so kind to ask the Elementor Support, they should be the best to assist with this particular query.

Thank you.