[whatwg] Implementation complexity with elements vs an attribute (responsive images)

[David Goss]

On Sun, May 13, 2012 at 6:01 PM, Benjamin Hawkes-Lewis
<bhawkeslewis at googlemail.com> wrote:
> On Sun, May 13, 2012 at 5:21 PM, Mathew Marquis <mat at matmarquis.com> wrote:
>> When we get ?something new to optimize for,? we start adding that thing going forward. The evolution of media queries?or, say, HTML5?hasn?t led to a need to constantly revisit every piece of client work a developer has ever produced.
>
> In the case of webkit prefixes, authors have needed to update their
> work, have failed to do so, and now user agents are having to support
> webkit prefixes.

Agreed, but I don't think it's a fair comparison - we're not talking
about deprecating <img> with either new proposal. Existing work isn't
becoming invalid. It'll be something we can use to do a better job
from now on.