Forum:Change the text color in the buttons?

Hello. Can someone fill me in on the code to insert in the Common.css in order to change the text color of the buttons on my Wiki. With buttons, I'm talking about the buttons that say for example "Edit", "Add a Photo", "Start a wiki". You know what I'm talking about. It's black now, and I want it white.

And also this: a code to change to text color of the expanded Wiki navigation (again from the default black to white). Thanks. 15:59, April 14, 2012 (UTC)