http://www.w3.org/TR/css3-mediaqueries/#values says <resolution> is <number> (not <integer>) followed by a unit identifier. (At the time I implemented it I think this was vague, and I implemented <integer>.)
Created attachment 551847 [details] [diff] [review] patch
Yeah, I committed the tests in July 2008 (which means I wrote them earlier): https://hg.mozilla.org/mozilla-central/rev/bb091bc06282 Anne landed text in the spec just before I did that, defining it as <integer> in: revision 1.24 date: 2008/06/12 14:16:20; author: avankest; state: Exp; lines: +21 -21 define <ratio> to allow whitespace around '/' in aspect-ratio and device-aspect-ratio and then changed it to <number> in: revision 1.25 date: 2008/08/26 10:45:50; author: avankest; state: Exp; lines: +16 -9 work around bugs in the preprocessor; make grid:2 an error; add notes about not affecting HTML and all; <resolution> takes numbers
Comment on attachment 551847 [details] [diff] [review] patch r=me
A note in "Firefox 8 for Developers" doesn't make dev-doc-complete. Updating https://developer.mozilla.org/en/CSS/media_queries#resolution should be considered, at least.
Docs updated: https://developer.mozilla.org/en/CSS/number https://developer.mozilla.org/en/CSS/Media_queries#resolution