Re: z-index of scrollbars

Robert O'Callahan wrote:
> Somewhere the spec should mention that when the UA displays a scrolling 
> mechanism for 'overflow:auto' or 'overflow:scroll' elements, the 
> scrolling mechanism should be drawn just above any background and 
> borders of the element. (Opera, Webkit and IE8 'standards mode' already 
> do this, and Gecko will after 1.9.1/FF3.1).

I think this should be out-of-scope for CSS2.1. I don't mind adding a
note about common behavior in Appendix E, though.

~fantasai