SP Page Builder Flip Box

How do you do simple things in the SP Pae Builder Flip Box? Example: Photo on the front and text on the back. The back text needs to have a BOLD, CETERED title, A link on the words "contact us" within the paragraph and the button chould be centered. There is NO TinyMCE editor function available. We have 2 different builders that do this but the company has deceided to change everything to SP Page Builder. Any help would be appreciated.