Help to align menu

Hi guys,

This is regarding the website mothdesign.dk

As you can see the menu is aligned to the right for some reason. I have looked everywhere and I can’t see why.
I then tried to “force” it to be center-aligned with different CSS, but nothing works for me.

Anyone of you that might be able to help me with the correct CSS I need or tell me what I have done wrong?

Really appreciated!

The page I need help with: [log in to see the link]