This document is a draft, and is designed to show changes from a previous version. It is presently showing added text,changed text,deleted text,[start]/[end] markers,and Issue Numbers.
Changes are displayed as follows:
Applies to HTML 4.x and XHTML 1.x.
This failure relates to:
This describes a failure condition for text alternatives for images that
should be ignored by AT. If there is no alt attribute at all assistive
technologies are not able to ignore the non-text content. The alt attribute
must be proved and have a null value (i.e. alt=""
or
alt=" "
) to avoid a failure of this success criterion.
Note: Although alt=" "
is valid, alt=""
is
recommended.
Failure Example 1: Decorative images that have no alt
attribute
No resources available for this technique.
(none currently listed)
Identify any img
and applet
elements
that are used for purely decorative content;
Check that the alt
attribute for these elements
exists.
Check that the alt
attribute for these elements is
null.
if step #2 or step #3 is false, this failure condition applies and content fails the success criterion.