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:
All technologies that support CSS.
This failure relates to:
The CSS background-image property provides a way to include images in the document with CSS without any reference in the HTML code. The CSS background-image property was designed for decorative purposes and it is not possible to associate text alternatives with images that are included via CSS. Text alternatives are necessary for people who cannot see images that convey important information. Therefore, it is a failure to use this property to add images to convey important information.
In the following example, part of the content is contained in an image that is presented by CSS alone. In this example, the image TopRate.png is a 180 by 200 pixel image that contains the text, "19.3% APR Typical Variable."
The CSS contains:
p#bestinterest {
padding-left: 200px;
background: transparent url(/images/TopRate.png) no-repeat top left;
}It is used in this excerpt:
<p id="bestinterest"> Where else would you find a better interest rate? </p>
A book distributor uses background images to provide icons against a list of book titles to indicate whether they are new, limited, in-stock, or out of stock.
The CSS contains:
ul#booklist li {
padding-left: 20px;
}
ul#booklist li.new {
background: transparent url(new.png) no-repeat top left;
}
ul#booklist li.limited {
background: transparent url(limited.png) no-repeat top left;
}
ul#booklist li.instock {
background: transparent url(instock.png) no-repeat top left;
}
ul#booklist li.outstock {
background: transparent url(outstock.png) no-repeat top left;
}It is used in this excerpt:
<ul id="booklist"> <li class="new">Some book</li> <li class="instock">Some other book</li> <li class="limited">A book we desperately want to get rid of</li> ... <li class="outstock">A book you actually want </li> </ul>
No resources available for this technique.
Examine all images added to the content via CSS.
Check that the images do not convey important information.
Step #2. If it is true then this failure condition applies and content fails the success criterion.