Problem with font sizes

#1

Concerns: https://forio.com/epicenter/synmind/circular-dynamics-beton

When I change font sizes in HTML using Interface, for example p to h4 the changes first appear but are undone when I continue in the Interface Builder text editor.
What can I do about this?
Could you please also comment on my previous post, concerning the popup button?

#2

This can be difficult. The interface builder may rewrite the HTML on a page if you edit that page.

You might look into using CSS files to change the font size outside of the interface builder.

#3

Hi Will,
In the meantime I solved this problem by creating specific rows for the h4 headings.
Joaquim