Changing the font size using the DIVI theme

Firstly, forgive me for using the same question / title for this second help request; the first should have read "How do I get rid of a sidebar in the checkout screen portion of my shopping cart." My apologies for that mistake.

Now to the question:

I am writing some copy for some workshops I am hosting. However, the font I am using for the copy, while spaced perfectly, is too small. I do not want to change the font size to something like "Heading 1" as that is too large. Basically, I like the style of the ""Paragraph" font, but I just want it to be a little larger. How can I achieve this?

Thank you for your help.