This is an archived snapshot of W3C's public bugzilla bug tracker, decommissioned in April 2019. Please see the home page for more details.
http://lists.w3.org/Archives/Public/www-style/2010Oct/0541.html
I think this is sufficiently clear now, but I asked Sylvain to confirm that he agrees. My message should appear shortly at: http://lists.w3.org/Archives/Public/www-style/2012Feb/0797.html
Sylvain agreed it's better now: http://lists.w3.org/Archives/Public/www-style/2012Feb/0799.html