BTCoombs on "How to change a the color of a single menu title"

I have several menu items on my website; http://www.Inspect2code.com
I'd like to change one of the menu titles to a different color, but can't figure out how to do it. I'm guessing that I need to go into my (Style.CSS) folder to make the changes, but not sure where to go from there. I know a little HTML and even less CSS.

Thanks,

Brian