In the process of website development, the team agreed to create the CTA sections as whole (my suggestion was to create the section as a module in HubSpot and the buttons as a CTA). the reason is that the CTA is a JS code that fires ecerytime the visitor goes to the page. The more elements to execute means the reduce in performance.

So they did not care and I do not care too. So I defined a template CTA which styled dynamically which means if you select it as the primary CTA, it gets the Primary CTA styling and if you select it as the Secondary CTA, it gets the styling of button–arrow (logically it should be as this).

They added 2 CTAs in a custom richt text in the hero section of this page https://fueld-7214937.hs-sites.com/marketing-campagnes but it does not styled properly.

Solution:
I edited the CTA and added a custom CSS Class in the advanced tab of the CTA as the image below.