https://bugzilla.wikimedia.org/show_bug.cgi?id=29201

--- Comment #3 from Roan Kattouw <roan.katt...@gmail.com> 2011-06-01 16:30:03 
UTC ---
(In reply to comment #2)
> usually, these warnings do make sense. And there are many. They often 
> indicate,
> that a spurious "," or ";" can break or broke the process flow somehow. I 
> don't
> like css or js warnings.

This is part of a hack we use to apply certain CSS rules only on IE. The rule
looks something like foo: bar !ie; . In all non-IE browsers (and IE 8 and
higher), if an exclamation mark (!) is not followed by 'important', the rule is
considered invalid and ignored (and a warning thrown, apparently; these are the
warnings you're seeing). IE 7 and below, on the other hand, don't care and just
apply these rules anyway.

Sometimes, we use CSS hacks that cause warnings in compliant browsers. That's a
fact of life, and we're not gonna spend a lot of time trying to keep warning
logs clean.

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