[css3-background] Negative box-shadow blur: equivalent to 0px or invalid ?

The latest draft [1] states :

"The third length is a blur distance. Negative values are not allowed."

I assume "not allowed" here means invalid i.e. such a declaration is an error.
Opera, Firefox and IE9 PP3 currently treat negative blurs as 0px.



[1] http://dev.w3.org/csswg/css3-background/#the-box-shadow

Received on Wednesday, 30 June 2010 14:28:55 UTC