Centering a custom CSS menu

Hi,

I had just “built” a custom CSS menu and inserted it at the top of my website, everything looks and works properly except for the fact I can’t seem to get it centered on the page. I really don’t have that much knowledge with CSS, so any suggestions would be of great help! I have tried everything that I can think of! Please help!

My website’s URL is http://www.somethinghdr.com

Thanks,
Brad