[1] 例: -apple-dashboard-region: dashboard-region(resize rectangle);
-apple-dashboard-region: dashboard-region(resize rectangle);
[2] IRC logs: freenode / #whatwg / 20110110 ( (2011-01-16 18:25:17 +09:00 版)) <http://krijnhoetmer.nl/irc-logs/whatwg/20110110#l-556>