ul>

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<h1><a name="prohibitions" id="prohibitions">Appendix B. Element
Prohibitions</a></h1>

<p><b>This appendix is normative.</b></p>

<p>The following elements have prohibitions on which elements
they can contain (see <a href="#h-4.9">Section 4.9</a>). This
prohibition applies to all depths of nesting, i.e. it contains
all the descendant elements.</p>

<dl><dt><code class="tag">a</code></dt>
<dd>
cannot contain other <code>a</code> elements.</dd>
<dt><code class="tag">pre</code></dt>
<dd>ca