21242 2013-03-11 05:17:39 +0000 [Shadow]: 6.3 @host @-rule should extend the CSS 2.1 grammar 'stylesheet' production 2013-07-17 22:13:00 +0000 1 1 1 Unclassified WebAppsWG HISTORICAL - Component Model unspecified PC All RESOLVED INVALID P2 normal --- 14978 1 dominicc dglazkov dominicc jackalmage tasak public-webapps-bugzilla oldest_to_newest 84209 0 dominicc 2013-03-11 05:17:39 +0000 Section 6.3 specifies an additional 'host' production to the CSS 2.1 grammar, however that production is naturally not used anywhere in the existing CSS 2.1 grammar. As a result the addition of the rule is meaningless from the point of view of parsing @host rules in the context of a stylesheet. For example, it is not clear if or how @host rules can be combined with @media rules. Section 6.3 should specify additional amendment (perhaps to the 'stylesheet' production) to the CSS grammar to clarify where @host rules appear in a stylesheet. 84256 1 dglazkov 2013-03-11 17:24:21 +0000 Let's ask Tab to help us with this. 84267 2 jackalmage 2013-03-11 19:59:22 +0000 Hook into this: <http://dev.w3.org/csswg/css3-conditional/#grammar>. In other words, amend the stylesheet production to include the host rule, and also amend the nested_statement rule <http://dev.w3.org/csswg/css3-conditional/#nested_statement> in the same way. 84268 3 dglazkov 2013-03-11 20:01:49 +0000 (In reply to comment #2) > Hook into this: <http://dev.w3.org/csswg/css3-conditional/#grammar>. > > In other words, amend the stylesheet production to include the host rule, > and also amend the nested_statement rule > <http://dev.w3.org/csswg/css3-conditional/#nested_statement> in the same way. Awesome, thanks! Dominic, consider this change accepted and slowly making its way through the editorial process' digestive tract. 90894 4 dglazkov 2013-07-17 22:13:00 +0000 @host at-rule is dead.