Google Easy Fonts

I’m using the Google Easy Fonts plugin, but am having trouble getting the blog post titles to behave the same way across all pages. In other words, I can use the plugin to change the font on the home page, but when the blog post opens in a different page, the fonts revert back to the theme font. I tried going to each page and changing it there, but it doesn’t seem to work.

How do I fix that? I used the following Font Control to get the plugin to work for the main page.

.entry-header h1.entry-title a

Is there a separate Control that needs to be added?