Multiple Image Backgrounds with CSS 3

I have been reading about HTML 5 and CSS 3 for a while now and thought I would try some experiments with some of the new CSS 3 properties. This little snippet will put an inner-shadow on the body element by using 5 different image backgrounds to define the shadow.

You can view a demo here. Note, not supported in all browsers as of May 2010, but should work in the latest versions of Chrome, Safari and Firefox.