Short URL: http://html5.org/r/2943
| SVN | Bug | Comment | Time (UTC) |
|---|---|---|---|
| 2943 | 2009-04-01 00:12 |
Index: source
===================================================================
--- source (revision 2942)
+++ source (revision 2943)
@@ -19028,8 +19028,12 @@
views, then the <code title="attr-img-alt">alt</code> attribute must
be the empty string.</p>
+ <p>In such cases, the <code title="attr-dim-width">width</code> and
+ <code title="attr-dim-height">height</code> attributes should both
+ be set to zero.</p>
+
<h6>An image in an e-mail or document intended for a specific person who is known to be able to view images</h6>
<p>When an image is included in a communication (such as an HTML
@@ -27876,7 +27880,7 @@
respectively, relative to the nominal direction of the output
medium), in CSS pixels. The attributes, if specified, must have
values that are <span title="valid non-negative integer">valid
- non-negative integers</span> greater than zero.</p>
+ non-negative integers</span>.</p>
<p>The specified dimensions given may differ from the dimensions
specified in the resource itself, since the resource may have a
@@ -27895,6 +27899,8 @@
<var title="">specified width</var> / <var title="">target ratio</var> ≤
<var title="">specified height</var> + 0.5</span></li>
+ <li><span title=""><var title="">specified height</var> = <var title="">specified width</var> = 0</span></li>
+
</ul>
<p>The <var title="">target ratio</var> is the ratio of the
@@ -27907,9 +27913,13 @@
<p>The two attributes must be omitted if the resource in question
does not have both an intrinsic width and an intrinsic height.</p>
- <p class="note">Basically, the dimension attributes can't be used to
- stretch the image.</p>
+ <p>If the two attributes are both zero, it indicates that the
+ element is not intended for the user (e.g. it might be a part of a
+ service to count page views).</p>
+ <p class="note">The dimension attributes are not intended to be used
+ to stretch the image.</p>
+
<div class="impl">
<p><strong>User agent requirements:</strong> User agents are