Re: Image width specification in html5

On 20 November 2011 13:55, David Swindlehurst <davidms@uwclub.net> wrote:

> Although there is a mass of insignificant discussion in the current
> Specification about the "alt" tag, there is no mention of image sizing at
> all...


Isn't there?
http://www.w3.org/TR/html5/the-map-element.html#attr-dim-width

Separately: Do you have a use-case for using percentage values for `width`
/ `height` on `img` elements? I'm not immediately thinking of one (well,
not a good one), but that doesn't mean anything.
--
T.J. Crowder
Independent Software Engineer
tj / crowder software / com
www / crowder software / com

On 20 November 2011 13:55, David Swindlehurst <davidms@uwclub.net> wrote:

> Hi folks:
>
> The W3C Validator for html5 (as with previous versions) accepts element
> widths specified in percentages, through CSS, which enables accurate page
> rendering for any size of display. EXCEPT that it refuses to accept
> percentages for specifying width for the img tag! For instance
>
> <div class="?"><img src="image.png" alt="ancient grey-haired awkward
> person" width="25%" /></div>
>
> results in an error - the Validator expects an absolute number (of
> pixels!). Fixing image width like this prevents correct rendering of the
> page in any size of display different from the writer's original. Although
> there is a mass of insignificant discussion in the current Specification
> about the "alt" tag, there is no mention of image sizing at all, which
> seems to me to be far more important. Does the Spec need revising, or is
> the Validator wrong in expecting an absolute number?
>
> DMS
>
>
>