Change color of active link in menu bar

I changed the color of my menu bar, but the active link when clicked is too dark of a color. I want the links in the menu to all stay white… I can’t seem to grab the right code for CSS, please help!

Site: https://www.marinabaygrill.com

Here is a screenshot – see the bottom right. If I uncheck the color box, the link is the right color, but I can’t get the right code to make it do that all the time. Arg!

Marina Bay Grill | Current Specials! – Internet Explorer

Please help me ??