Header One Feature Text

Okay, I am totally out of options at this point. All I want to do is change the text on the “featured text” area from white to black.

I have tried putting this into lite.css, custom css manager (a plugin), directly into the header.php file. I must be doing it wrong because I would think one of those 3 would make it work.

Please be specific as to what I need to do this. Thanks in advance!!