468 |
element must have an <code>xmlns</code> attribute |
element must have an <code>xmlns</code> attribute |
469 |
whose value is set to |
whose value is set to |
470 |
<code>http://www.w3.org/1999/xhtml</code>.</p></dd> |
<code>http://www.w3.org/1999/xhtml</code>.</p></dd> |
471 |
|
<dt>If the element with the error is <code>blink</code>, |
472 |
|
<code>center</code>, or <code>marquee</code> element</dt> |
473 |
|
<dd>These elements are not part of the HTML standard. |
474 |
|
Use CSS for styling control.</dd> |
475 |
</dl> |
</dl> |
476 |
</p> |
</p> |
477 |
</div> |
</div> |
503 |
to the user.</p> |
to the user.</p> |
504 |
</div> |
</div> |
505 |
|
|
506 |
|
<div class="section attribute-error" id="attribute-not-allowed"><h3>Attribute |
507 |
|
<code><var>{local-name}</var></code> is not allowed for |
508 |
|
<code><var>{element-local-name}</var></code> element.</h3> |
509 |
|
<p>An attribute is specified where it is not allowed. |
510 |
|
The document is non-conforming.</p> |
511 |
|
|
512 |
|
<dl> |
513 |
|
<dt>HTML <code>meta</code> element</dt> |
514 |
|
<dd>For HTML <code>meta</code> element, <em>only one</em> of |
515 |
|
<code>name</code>, <code>http-equiv</code>, or <code>charset</code> |
516 |
|
attribute is allowed.</dd> |
517 |
|
</dl> |
518 |
|
</div> |
519 |
|
|
520 |
<div class="section attribute-error" id="in-HTML:xml:lang"><h3>The <code>xml:lang</code> attribute is not |
<div class="section attribute-error" id="in-HTML:xml:lang"><h3>The <code>xml:lang</code> attribute is not |
521 |
allowed in HTML document.</h3> |
allowed in HTML document.</h3> |
522 |
<p>The <code>xml:lang</code> attribute is not allowed in |
<p>The <code>xml:lang</code> attribute is not allowed in |
582 |
|
|
583 |
<div class="section attribute-value-error" id="enumerated:invalid"><h3>This attribute only allow a limited set of |
<div class="section attribute-value-error" id="enumerated:invalid"><h3>This attribute only allow a limited set of |
584 |
values and the specified value <code><var>{@}</var></code> is not one |
values and the specified value <code><var>{@}</var></code> is not one |
585 |
of them.</h3></div> |
of them.</h3> |
586 |
|
<p>For this attribute only several values are allowed and the |
587 |
|
value of the attribute is not one of them. The document |
588 |
|
is non-conforming.</p> |
589 |
|
|
590 |
|
<dl> |
591 |
|
<dt>HTML <code>meta</code> element, <code>http-equiv</code> attribute</dt> |
592 |
|
<dd><p>Only <code>Default-Style</code> and <code>Refresh</code> |
593 |
|
is allowed.</p> |
594 |
|
<p>Value <code>Content-Type</code> is obsolete; for charset |
595 |
|
declaration, the <code>charset</code> attribute can be used as: |
596 |
|
<pre class="html example"> |
597 |
|
<code><meta charset="<var>charset-name</var>"></code></pre> |
598 |
|
... where <var>charset-name</var> is a name of the character encoding |
599 |
|
of the document, such as <code>utf-8</code>.</p> |
600 |
|
<p>Values <code>Content-Style-Type</code> and |
601 |
|
<code>Content-Script-Type</code> are currently not allowed.</p> |
602 |
|
<p>Value <code>Keywords</code> is not allowed. Use |
603 |
|
<code>name</code> attribute instead of <code>http-equiv</code> |
604 |
|
attribute.</p> |
605 |
|
<p>Values <code>Expires</code>, <code>Pragma</code>, |
606 |
|
and <code>Cache-Control</code> are not allowed; |
607 |
|
use <em>real</em> HTTP header fields for cache control.</p></dd> |
608 |
|
</dl> |
609 |
|
</div> |
610 |
|
|
611 |
<div class="section attribute-value-error" id="duplicate-ID"><h3>This identifier has already been |
<div class="section attribute-value-error" id="duplicate-ID"><h3>This identifier has already been |
612 |
assigned to another element.</h3></div> |
assigned to another element.</h3></div> |
824 |
The link type might have been added to the registry since then. |
The link type might have been added to the registry since then. |
825 |
In such case it might be conforming. Otherwise, the |
In such case it might be conforming. Otherwise, the |
826 |
document is non-conforming.</p> |
document is non-conforming.</p> |
827 |
|
|
828 |
|
<dl> |
829 |
|
<dt>Link types <code>shortcut icon</code></dt> |
830 |
|
<dd>Link type <code>shortcut</code> is not registered. |
831 |
|
Use only <code>icon</code> for linking to so-called favicon.</dd> |
832 |
|
</dl> |
833 |
</div> |
</div> |
834 |
|
|
835 |
<div class="section unsupported" id="unsupported:event-handler"><h3>Conformance checking for event handler attribute |
<div class="section unsupported" id="unsupported:event-handler"><h3>Conformance checking for event handler attribute |