Post Title Font size change for ePublishing theme

I installed ePublishing and managed to get most everything tweaked nicely. Most of the font-sizes were too large, and I got most of them trimmed down. However, I can’t seem to find anything that impacts the display of the post titles when looking at individual posts (as opposed to when looking at category archives, for instance).

An example of the huge font I’d like to reduce: https://www.findstuff2read.com/2013/review-year-of-the-hyenas/

An example of a category archive with (now-reduced) font sizes:
https://www.findstuff2read.com/category/posts/book-reviews/

I *think* the issue has to do with headers h1, etc. Perhaps there are special instances of headers for titles?

Any help would be appreciate. I am using a child theme as well as the CSS editor to make changes (although I’m thinking I may have gotten it down to just the CSS editor).

Version of WordPress is 3.4.2 – website is https://www.FindStuff2Read.com