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59939081apply wg decision2011-04-12 21:58
@@ -92,20 +92,26 @@
    <li>The W3C version omits a paragraph of implementation advice
    because of <a
    href="http://lists.w3.org/Archives/Public/public-html/2010Jun/0001.html">a
    working group decision from June 2010</a>.</li>
 
    <li>The W3C version includes a paragraph of advice redundant with
    the ARIA specifications because of <a
    href="http://lists.w3.org/Archives/Public/public-html/2011Mar/0244.html">a
    working group decision from March 2011</a>.</li>
 
+   <li>The W3C version gives incomplete advice regarding the <code
+   title="attr-img-alt">alt</code> attribute and instead references
+   other documents on the matter because of <a
+   href="http://lists.w3.org/Archives/Public/public-html/2011Mar/0691.html">a
+   working group decision from March 2011</a>.</li>
+
   </ul>
 
   <p>Features that are considered part of the next generation of HTML
   beyond HTML5 (and that are therefore not included in the W3C version
   of HTML5) currently consist of:</p>
 
   <ul class="brief">
    <li>The <code>PeerConnection</code> API and related video-conferencing features.</li> <!--DEVICE-->
    <li>The <code title="attr-hyperlink-ping">ping</code> attribute and related <span>hyperlink auditing</span> features.</li> <!--PING-->
    <li>The <span>WebVTT</span> format and some <span>text track</span> API features.</li> <!--TT--> <!--TTVTT-->
@@ -23956,24 +23962,39 @@ about 62% of documents on the Web in 2007 triggered the Quirks
 rendering mode of Web browsers, about 30% triggered the Almost
 Standards mode, and about 9% triggered the Standards mode.&lt;/p>
 <strong>&lt;p>&lt;img src="rendering-mode-pie-chart.png" alt="">&lt;/p></strong></pre>
 
   </div>
 
 
 
   <h6>A purely decorative image that doesn't add any information</h6>
 
-  <p>In general, if an image is decorative but isn't especially
-  page-specific, for example an image that forms part of a site-wide
-  design scheme, the image should be specified in the site's CSS,
-  not in the markup of the document.</p>
+  <p>If an image is decorative but isn't especially page-specific
+  &mdash; for example an image that forms part of a site-wide design
+  scheme &mdash; the image should be specified in the site's CSS, not
+  in the markup of the document.</p>
+
+<!--END html--><!--END complete--><!--END epub--><!--END dev-html-->
+  <p>Exceptions to this rule, in cases where CSS cannot be used to
+  display an entirely decorative image, are covered by the HTML5:
+  Techniques for providing useful text alternatives. <a href="#refsHTMLALTTECHS">[HTMLALTTECHS]</a>
+  Authors are also encouraged to consult the Web Content Accessibility
+  Guidelines 2.0 for more detailed information and acceptable
+  techniques. <a href="#refsWCAG">[WCAG]</a></p>
+<!--START html--><!--START complete--><!--START epub--><!--START dev-html-->
+<!--END w3c-html-->
+
+  <!-- The above paragraph is omitted in the WHATWG copy and replaced
+  with the explicit requirement below because accessibility is better
+  served by having authors get all their information from one place,
+  instead of requiring them to read multiple (contradictory) documents. -->
 
   <p>However, a decorative image that isn't discussed by the
   surrounding text but still has some relevance can be included in a page
   using the <code>img</code> element. Such images are decorative, but
   still form part of the content. In these cases, the <code
   title="attr-img-alt">alt</code> attribute must be present but its
   value must be the empty string.</p>
 
   <div class="example">
 
@@ -23991,20 +24012,21 @@ Long fields of barley and of rye,&lt;br>
 That clothe the wold and meet the sky;&lt;br>
 And through the field the road run by&lt;br>
 To many-tower'd Camelot;&lt;br>
 And up and down the people go,&lt;br>
 Gazing where the lilies blow&lt;br>
 Round an island there below,&lt;br>
 The island of Shalott.&lt;/p></pre>
 
   </div>
 
+<!--START w3c-html-->
 
 
   <h6>A group of images that form a single larger picture with no links</h6>
 
   <p>When a picture has been sliced into smaller image files that are
   then displayed together to form the complete picture again, one of
   the images must have its <code title="attr-img-alt">alt</code>
   attribute set as per the relevant rules that would be appropriate
   for the picture as a whole, and then all the remaining images must
   have their <code title="attr-img-alt">alt</code> attribute set to
@@ -110307,20 +110329,23 @@ interface <span>HTMLDocument</span> {
    I. Hickson. WHATWG.</dd>
 
    <dt id="refsHTML5">[HTML5]</dt>
    <dd>
 <!--END vocabs--><!--END vCard--><!--END vEvent--><!--END work--><!--END websocket-api--><!--END storage--><!--END eventsource--><!--END whatwg-workers--><!--END workers--><!--END html-device--><!--YYYEND microdata--><!--END 2dcontext--><!--END postmsg--><!--END w3c-html-->
    (Non-normative)
 <!--START html-device--><!--YYYSTART microdata--><!--START 2dcontext--><!--START postmsg--><!--START w3c-html--><!--START websocket-api--><!--START storage--><!--START eventsource--><!--START whatwg-workers--><!--START workers--><!--START vocabs--><!--START vCard--><!--START vEvent--><!--START work-->
    <cite><a href="http://dev.w3.org/html5/spec/">HTML5</a></cite>,
    I. Hickson. W3C.</dd>
 
+   <dt id="refsHTMLALTTECHS">[HTMLALTTECHS]</dt>
+   <dd>(Non-normative) <cite><a href="http://dev.w3.org/html5/alt-techniques/">HTML5: Techniques for providing useful text alternatives</a></cite>, S. Faulkner. W3C.</dd>
+
    <dt id="refsHTMLDIFF">[HTMLDIFF]</dt>
    <!--
    <dd>(Non-normative) <cite><a
    href="http://www.w3.org/TR/html5-diff/">HTML5 differences from
    HTML4</a></cite>, A. van Kesteren. W3C.</dd>
    -->
    <dd>(Non-normative) <cite><a
    href="http://dev.w3.org/html5/html4-differences/">HTML5
    differences from HTML4</a></cite>, A. van Kesteren.  W3C.</dd>
 

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