Is it possible to shrink an image and make it your background all in css?

I have a div, and I want to make a whole background image fit inside the div, even though the image is a little bigger than the div, how would I go abou开发者_JS百科t shrinking this dynamically?

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Looks like it is possible in CSS3 but not currently in CSS2

http://www.w3.org/TR/2002/WD-css3-background-20020802/#background-size

This is also a duplicate of this question