W3C home > Mailing lists > Public > w3c-wai-ig@w3.org > January to March 2014

RE: Using Alt Text on the Link Element

From: Foliot, John <john.foliot@chase.com>
Date: Wed, 5 Mar 2014 16:59:24 +0000
To: "davebest@cogeco.ca" <davebest@cogeco.ca>, "w3c-wai-ig@w3.org" <w3c-wai-ig@w3.org>
Message-ID: <D0DBF1AE71D5D1448811AC417951907427D54D6B@SCACMX021.exchad.jpmchase.net>
David Best wrote:
> What is the WCAG2.0 rule for using Alt Text in an <a> element?

Alt text is never applied to the <a> (anchor) element - it is non-conformant.

> The situation I have been confronted with is a <h2> element followed
> by an <img> element enclosed in an <a> element. The template generator
> automatically places the <h2> text into the <img> Alt Text attribute,
> but this creates a duplicate output for the screen reader user, and
> the author would like to make the <a>/<img> element invisible so as
> to eliminate the duplication.

This appears to be a problem with your template.

> If you put Alt Text in the <a> element,
> then the screen reader reads out the Alt Text as expected, but if you
> use no text (alt="") in the <a> element, the screen reader reads out
> the <a> element link location. Unlike the <img> element that becomes
> invisible. In this case the <a> link is simply a larger screen shot
> image, and not of any value to the screen reader user.

I will rework your code to what it 'should' be:

<div id="screensteps">
  <h2 id="StepTitle">Step Title</h2>
    <div class="image clearfix">
      <a href="Full_Screen_Shot_Image.png">
        <img alt="Image: Full Screen" src="Small_Magnifier_Icon.png" height="301" width="409" />
      <p>Text description of the full screen shot image.</p>

Because the link around the magnifier icon goes to a specific asset, the alt text of that image needs to define what/were that link is going to. This is another example of what is outlined here: http://dev.w3.org/html5/alt-techniques/#sec1 (see example 1.3)

Hope this helps.


This transmission may contain information that is privileged, confidential, legally privileged, and/or exempt from disclosure under applicable law.  If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED.  Although this transmission and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by JPMorgan Chase & Co., its subsidiaries and affiliates, as applicable, for any loss or damage arising in any way from its use.  If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you.
Received on Wednesday, 5 March 2014 16:59:57 UTC

This archive was generated by hypermail 2.3.1 : Tuesday, 13 October 2015 16:21:50 UTC