Text Alignment and Color Change In Menu

I can't figure out how to change the text color and alignment in the top menu area.
I would like the text to be white instead of grey and align to the right side of the page just to the left of the "Add Listing" button.

I've been trying for an hour but nothing I try works.
I would like to do it in the "custom CSS editor" of my theme.


Any help would be appreciated.

The attached screen is what I would like it to look like.

Thanks JIM