Changes have no effect
I have tried this before myself, I have mentioned it as well in the forum.
I just thought if I have by mistake not done it the way you have, so I did it anyway. You can refere to the same page again and look for your self.
There is no change.
As you can see there are no other scripts or styles in this page to interrupt the conditions.
The problem still exists and looks like there is no fix to the mighty CSS Menu.
I am still waiting though.