Category Description Font Size

I am trying to change the font size of the category description that shows at the top of each category page on my site. It is a little small, and i would like to make it stand out more when people click on that page (category) I have dug a little in the stylesheet, but I cannot find it. Any help would be wonderful!

Here is an example from my site– under the category title News, and the purple bar is the category description that says “Here is the latest news we thought you should know!” That is what the font I would like larger.

Thanks for the help!