Absolute positioning and 'shrink wrapping'

While trying to solve kraftomatic's problem (http://www.codingforums.com/showthread.php?s=&threadid=30807#post159644), I came across something that I couldn't see defined in the CSS spec anywhere. With IE6 and Moz FB 0.7, Absolutely positioned elements seem to only take up as much width as is necessary, 'shrink wrapping'. I looked in the CSS spec (http://www.w3.org/TR/CSS21/visuren.html#absolute-positioning) for this sort of thing, but I couldn't find anything on width.

Is this a bug, have I misunderstood something, or just missed something?

me',

Since I had gone through a few different problems, I started a new thread explaining the latest, which is a bit more clear:

http://www.codingforums.com/showthread.php?s=&threadid=30932

Thanks for the help. I appreciate it.