Implement Adobe's CSS Exclusions proposal for more complex layouts like those used in print. This is still in flux, but Adobe has created a WebKit-based prototype found here: http://labs.adobe.com/technologies/cssregions/
The exclusions proposal has been merged into the floats proposal; I'm against the lot of it.
*** This bug has been marked as a duplicate of bug 672053 ***
Exclusions is back, please reopen.
Would you mind reopening, please?
(In reply to Florian Bender from comment #3)
> Would you mind reopening, please?
I can do that myself now :)
So, according to MSDN, this is already in IE10. Also, Apple showed this on WWDC, and Chrome has it, too. Some tests say Firefox has limited support, but that's mostly for an outdated spec, AFAICS, as the tests linked to in the URL (above) all failed in my Fx 25b.