Hi there.  I put it in the Theme Settings -> CSS Code area.  I’m not sure why, but I took it out, and then replaced it in the same area again, and now it is working!

However, it isn’t allowing my rollover colors to work now?

So, just to make sure I’m being clear (forgive me if I have not been prior), on the homepage, I would like the main navigation (since it has a “transparent” background) to be white text, and then upon rollover, to be pink.  And then when I scroll down on the front page, as the navigation “sticks” to the stop, it’s navigation background becomes white, so then I want the navigation text to be pink, and then upon rollover, to be black.  Does this make sense?  I’m attaching screenshots: