Applicability
HTML and XHTML documents that load images.
This technique relates to Success Criterion 1.1.1: Non-text Content (Sufficient).
Description
The purpose of this technique is to show how images can be marked so that they can be ignored by Assistive Technology.
If no title attribute is used, and the alt text is set to null (i.e.
alt
="") it indicates to assistive technology that the image can be safely
ignored.
Have a "null" alt
attribute is not the same as having no alt
attribute.
Examples
Example 1
The following image is used to insert a decorative image on a Web page.
<img src="squiggle.gif" width="20" height="20" alt="" />
Tests
Procedure
For each image that should be ignored:
- Check that
title
attribute is either absent or empty. - Check that
alt
attribute is present and empty.
Expected Results
- #1 and #2 are true