/code><code><span class="keyword"> constraint </span><span class="type-var">'a</span> = [&gt; Html_Node.body ]</code></dt><dt class="spec type" id="type-children"><a href="#type-children" class="anchor"></a><code><span class="keyword">type </span>+'a children</code><span class="keyword"> = </span><code>[ </code><table class="variant"><tr id="type-children.Html_Node.flow" class="anchored"><td class="def type"><a href="#type-children.Html_Node.flow" class="anchor"></a><code><span class="keyword">| </span></co