[whatwg] add html-attribute for "responsive images"

Ashley Sheridan ash at ashleysheridan.co.uk
Tue Feb 7 01:45:02 PST 2012

On Mon, 2012-02-06 at 23:15 +0000, Bjartur Thorlacius wrote:

> On Mon, 06 Feb 2012 21:23:37 -0000, Mathew Marquis <mat at matmarquis.com>  
> wrote:
> > I recently published a sum-up of our thinking at A List Apart (  
> > http://www.alistapart.com/articles/responsive-images-how-they-almost-worked-and-what-we-need/  
> > )—in short, using the <video> markup pattern as the inspiration, with  
> > the use of media attributes on the <source> elements to determine the  
> > rendered source, and the inclusion of an <img>--ideally a smaller image,  
> > to account for the lowest-common-denominator--as a fallback similar to  
> > the way Flash or an image might be used as a <video> fallback.
> >
> Why not use a media attribute of <object>? That way you should get media  
> type disambiguation for free.

The main problem I see with that is that the <object> tag doesn't have
the same accessibility attributes, so you'd effectively lock out a lot
of people using browsers that don't understand the context of the tag in
this case. I think the better way is to add something to the <img> tag
as you'd still have full backwards compatibility.


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