Using built in buttons in css

Site URL: https://evos-working.squarespace.com/

On my website homepage under the section "Membership Options" I have two boxes created in code blocks which have buttons inside them. I'm wondering how I can set the style of these buttons to inherit the primary squarespace button styles?

Right now the code I use is <p><pckgbutton>Get Started »</pckgbutton></p> and have styling under custom css but am wondering if I can just remove this and use the built in button styling. Thanks.

Site password is admin

Can you share link to a page where you use primary button? We can check its style easier