WebAIM - Web Accessibility In Mind

E-mail List Archives

Re: Figures, ALT text and lightboxes

for

From: Steve Faulkner
Date: Feb 7, 2016 7:21AM

Hi Bernard

If an image is the subject of a figure and an alt text is not provided it
must not have an empty alt (alt=""). The circumstances where it is
conforming to have an image in a figure without an alt text are quite
restrictive, refer to
https://www.w3.org/TR/html5/embedded-content-0.html#when-a-text-alternative-is-not-available-at-the-time-of-publication

data-url is a custom attribute that does not act as a link, it's semantics
have no meaning outside of the scripting/software it has been designed for
and so will be ignored.

This is acceptable if no text alternative can be provided

<figure data-url="URL">
<p><img src="IMAGE_URL"></p>
<figcaption>
<p>CAPTION</p>
</figcaption>
</figure>

On Sunday, 7 February 2016, Bernard de Broglio <
<EMAIL REMOVED> > wrote:

> Hello all,
>
> We're using FIGURE with FIGCAPTION to provide an image and a description
> of the image + photographer credit.
>
> WebAIM's excellent article Alternative Text suggests that no ALT is
> necessary, the FIGCAPTION does the work.
>
> But we show ALT="" in the IMG tag.
>
> The same article also says that an image with an anchor must never have a
> missing or null ALT attribute.
>
> We don't use the ANCHOR element but we do use a DATA-URL attribute in the
> FIGURE tag.
>
> My question: is this good?
>
> <figure data-url="URL">
> <p><img src="IMAGE_URL" alt="" /></p>
> <figcaption>
> <p>CAPTION</p>
> </figcaption>
> </figure>
>
> Thanks for your consideration.
>
>
> Bernard de Broglio
> Web Manager
> Media & Communications
>
>
> <http://www.cityofsydney.nsw.gov.au>;[
> http://cdn.cityofsydney.nsw.gov.au.s3.amazonaws.com/2030/Graphics/cityofsydney.png
> ]
>
> ____
> Telephone: 9246 7601
> cityofsydney.nsw.gov.au<http://www.cityofsydney.nsw.gov.au>;
>
>
>
>
> > This email and any files transmitted with it are intended solely for the
> use of the addressee(s) and may contain information that is confidential or
> subject to legal privilege. If you receive this email and you are not the
> addressee (or responsible for delivery of the email to the addressee),
> please note that any copying, distribution or use of this email is
> prohibited and as such, please disregard the contents of the email, delete
> the email and notify the sender immediately.
>
> > > > > >