NavBar Arrow CSS location


Okay, when you hover over the arrow part of a nav item like Resources here, for a split second it changes color before it pops down the menu. What CSS value is that? I am going crazy trying to find it. I found the before, and after. Not the in between though.

Between (.navTabs .navTab.PopupClosed) and (.navTabs .navTab.PopupOpened) there is something that is there in between on hover.

Any help would be greatly appreciated.