(1) This is source ordered layout with floats. Please view the page in Safari 3 or Firefox 3.5 beta to see the box-shadow.

Under testing, 19 May 2009.

(2) This is a float with a negative margin. It comes later in the source

(3) Header. Rises to the top since both floats have been removed by negative margins.

CSS3 22. The box-shadow property