It would be very sweet if you could actually enforce an element's aspect ratio using CSS, so you wouldn't have to rely on hacks in the line of http://lab.veille.jp/aspectratio/ anymore.
This is especially useful when designing elastic interfaces that display videos. Example: Right column at http://www.veille.jp/ Julien -- Julien Cayzac http://julien.cayzac.name/ skype://jcayzac?chat
