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calc() in Media Queries (Was: [CSSWG] Minutes Telecon 2013-05-15)

From: Florian Rivoal <florian@rivoal.net>
Date: Fri, 17 May 2013 21:15:38 +0200
To: www-style@w3.org
Message-ID: <op.ww8s4chsf5de51@riboaru-nashiosamus-imac-2.local>
> calc()
> ------
>    <glazou> https://www.w3.org/Style/CSS/Tracker/issues/327
>    glazou: where is calc() allowed?
>    glazou: in particular, whether it can be used in a MQ?
>    glenn: wouldn't be easier to define where it can't be used?
>    fantasai: we should think about all the places where it can be used  
> and
>              consider examples
>    glazou: who will do this review? when?
>    fantasai: we can talk about media queries now
>    dbaron: media queries can't take percentages for width so this limits
>            its value
>    dbaron: but I do not object allowing calc with different units
>    glazou: are there use-cases for this? do authors ask for it?
>    fantasai: yes I think some people asked for it
>    glazou: I never needed it when I used MQ; I can't think of a  
> use-case...
>    <stearns>  @media screen and (min-width: calc(20em + 6px))
>    <stearns> from  
> http://lists.w3.org/Archives/Public/www-style/2007Nov/0227.html
>    glazou: objection to allow calc?
>    RESOLVED: calc() can be used inside media queries

Should this be specified in the MQ spec, or can it be done in the
Values and Unitsspec only? Since V&U introduces it by saying:

   "It can be used wherever <length>, <frequency>, <angle>, <time>,
   <number>, or <integer> values are allowed."

I suppose it just needs a clarification there, and no change is needed
in the MQ spec. Do we agree on that?

  - Florian
Received on Friday, 17 May 2013 19:16:05 UTC

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