Remove padding around custom code block

I'm trying to add a form to my website from Studio Ninja, it all works, however, there is padding of 40px all the way around the form.  (I found it when inspecting the page)

I can't seem to remove this padding?  I'm on version 7.0 of Squarespace.

Any advice would be great!

Hi,

Can you share link to page where you use Code Block? We can check easier