Can I Have Different Font Sizes on the Same Page?

I’ve been using Apple’s Web Design for Idiots (also known as iWeb) and looking to make the change to Blocs.

Stumped early on – I’m working on my first page and I have two completely separate paragraph Bric at different locations on the same page. But when I change the font size in the first paragraph Bric, it also changes the size in the second paragraph Bric.

What am I doing wrong? Can I even have two different font sizes in the same Bric?

Thanks for helping out a Newbie!

Add a custom class and alter the font in that.
Then wherever you apply the class, the default will be overwritten.