Hover issues

Hello, can someone please tell me why the hover backgrounds are white (when hovered) and then mysteriously when you switch pages they letters are red? It is my objective to have black buttons white letters and upon hover i would like red background with black letters. And when you change pages i want it to be the same site wide.

Please someone tell me where the error is. Thank you.

http://test.riverwalkpizzeria.com

thank you so much