Unable to match borders with grids between divs and CMS list made of divs

Hello,
I’m not able to match the borders/lines of the grid created in the upper menu (Symbol NOU MENU) and the grid created for the CMS list collection (Section 14 - collection list 20).

I’ve tried to create the same structure (4 columns) for both in order to mach the borders when I scroll up and they get overlaped, but always there is a little difference.

What am I doing wrong? :frowning:
Thanks!

Ready only link: https://preview.webflow.com/preview/leixida-org?utm_medium=preview_link&utm_source=designer&utm_content=leixida-org&preview=39ceecafae128a527ca641f3484e1a59&pageId=5f69ba1fc2178eabd66ac276&mode=preview


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