How do I remove background-image in css?

Question

I have a general rule which gives all DIVs a background image.
I have one div (with id=\'a\') which I don\'t want it to have the background image.
What css rule do I

Answer 1

Since in css3 one might set multiple background images setting "none" will only create a new layer and hide nothing.

http://www.css3.info/preview/multiple-backgrounds/ http://www.w3.org/TR/css3-background/#backgrounds

I have not found a solution yet...