W3C home > Mailing lists > Public > www-style@w3.org > March 2013

Re: The :min-width/:max-width pseudo-classes

From: Boris Zbarsky <bzbarsky@MIT.EDU>
Date: Fri, 22 Mar 2013 13:28:15 -0400
Message-ID: <514C94AF.4090008@mit.edu>
To: "Tab Atkins Jr." <jackalmage@gmail.com>
CC: Fran├žois REMY <francois.remy.dev@outlook.com>, "www-style@w3.org" <www-style@w3.org>
On 3/22/13 1:25 PM, Tab Atkins Jr. wrote:
> No, the problem is that a layout manager needs to be invoked at all to
> resolve selectors.  If an internal API wants up-to-date styles but
> doesn't actually care about layout, right now it can do that by just
> resolving all the selectors and running the cascade.  With the
> introduction of viewport-element-relative pseudoclasses, it needs to
> resolve layout, at least partially.

So I actually have a question.

What determines whether something is a "viewport"?  I seem to have 
missed that somewhere in here.

In the <iframe> case it's simple: it's the (immutable!) 
namespace+localName of the element.  But in the case we're talking about?

Received on Friday, 22 March 2013 17:28:44 UTC

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