[1] [CITE@en[CSS Values and Units Module Level 3]]
( ([TIME[2013-08-23 23:29:23 +09:00]] 版))
<http://dev.w3.org/csswg/css-values/#common-keywords>

[2] [CITE@en[CSS Cascading and Inheritance Level 3]]
( ([TIME[2013-08-23 11:38:39 +09:00]] 版))
<http://dev.w3.org/csswg/css-cascade/#inherit-initial>