Le 26 janv. 2013 à 03:37, Eric <e...@minerbits.com> a écrit : >> (under example 25 for the width MQ – it applies equally to the REM unit) > > Sure, that makes sense as long as a font-size has been set for the root > element. If there is no font-size set on the root element I'm not absolutely > sure what would be used but based on my testing of the REM unit and UA > default > font-size my assumption is that the UA's default font-size value would be > used. > I need to look into that.
The keyword is 'initial'. Even if the author specifies a font-size on the root element, it won't have any affect on the (computed / used) value of 'em' or 'rem' used for the MQ. http://www.w3.org/TR/CSS21/about.html#initial-value http://www.w3.org/TR/css3-values/#common-keywords http://www.w3.org/TR/css3-cascade/#initial It comes down to the value set by the UA stylesheet (in case of font-size, usually the value set in the browser preferences, or the system preferences). Philippe -- Philippe Wittenbergh http://l-c-n.com ______________________________________________________________________ css-discuss [css-d@lists.css-discuss.org] http://www.css-discuss.org/mailman/listinfo/css-d List wiki/FAQ -- http://css-discuss.incutio.com/ List policies -- http://css-discuss.org/policies.html Supported by evolt.org -- http://www.evolt.org/help_support_evolt/