[1] [CITE[IRC logs: freenode / #whatwg / 20120508]]
( ([TIME[2012-05-12 19:16:00 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20120508>

[2] [[CSSの基底URL]]

[3] [CITE[IRC logs: freenode / #whatwg / 20140129]]
( ([TIME[2014-01-30 19:43:04 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20140129>