[CSS3][selectors] Scrolled pseudo class

I would want to propose a pseudo class like this one: http://www.blooberry.com/indexdot/css/syntax/pseudo/pclassscrolledcontent.htm for 
elements that are in a state with scrollbars. Because, in a case like this:
<div style="background-color: red; height: 100px; overflow: auto"> <table border="1">...</table> </div>
...normally there should be no padding between the TABLE and the DIV.
However, if a vertical scrollbar appears, you might wan't to apply a small padding-right to the DIV, so that the scrollbar doesn't lie 
directly to the table border. Comments?