Negative Z-Index FireFox and Chrome and possibly others

First Chrome and Firefox do not play nice with negative z-index.

IE picks up my negative z-index without a glitch but Firefox and Chrome ignore it completely.

I am going to stay away from negative z-index for now since it is not really supported across the board.

FYI: The page z-index default value is zero and the default z-index of any layers is 1.

Useful Websites