Applies to content using image-based submit buttons.
This technique relates to Success Criterion 1.1.1: Non-text Content (Sufficient).
For input elements of type 'image', the
alt attribute of the
input element is used to provide a functional label. This label indicates
the button's function, but does not attempt to describe the image. The label is
especially important if there are multiple submit buttons on the page that each lead
input element is used to create many kinds of form controls. Although
the HTML and XHTML DTDs permits the
alt attribute on all of these, it should be used
only on image submit buttons. User agent support for this attribute on other types
form controls is not well defined, and other mechanisms are used to label these
input element with an
<form action="http://example.com/prog/text-read" method="post"> <input type="image" name="submit" src="button.gif" alt="Submit" /> </form>
- For all
inputelements that have a type attribute value of "image", check for the presence of an
- Check that the
altattribute indicates the button's function.
- #1 and #2 are true