Un-highlighting nav-selected

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Background:
I have a typical navigation setup where nav-selected has a different color so the user knows what page they're on. I also have each nav item set to change color on hover.

Problem:
I would like both the nav-selected and hover to be the same color, but not display simultaneously.

eg. When you hover over the a nav item, any styles applied to nav-selected would cease. When you pull your cursor off of the nav, the styles would return to nav-selected.

It seems like such a simple function, but I haven't found any discussions about it. Any help/direction would be much appreciated.

Mark