W3C home > Mailing lists > Public > www-style@w3.org > June 2016

Re: @else in Media Queries

From: Daniel Glazman <daniel.glazman@disruptive-innovations.com>
Date: Fri, 10 Jun 2016 21:45:32 +0200
To: www-style@w3.org
Message-ID: <00a329af-7837-742e-63fa-7e8b4f4e828c@disruptive-innovations.com>
On 10/06/2016 20:53, Tab Atkins Jr. wrote:

> I'm not sure that's what Daniel was referring to; his email *seemed*
> to be just about NOT/AND/OR, which does indeed exist already for
> @media and @supports.
> I haven't seen a use-case yet for needing to explicitly test for
> unknown values, except "emulate what @else can do".  If we can come up
> with one we can always add such a function.

Visibly, there's a need for a summary:

pros: - simple to read and understand
      - feature needed by users

cons: - new constraints needed on rule insertion
      - new constraints needed on rule deletion
      - @else standalone after deletion of @media is meaningless
      - complexifies automated media queries management
      - can't always express the @else case by a MQ
      - issues with copy/paste in wysiwyg environments

Received on Friday, 10 June 2016 19:45:58 UTC

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