<h1>Foo</h1>

<pre class=metadata>
Group: test
Shortname: foo
Level: 1
Status: LS
ED: http://example.com/foo
Abstract: Testing Can I Use panel generation.
Editor: Example Editor
Date: 1970-01-01
Include Can I Use Panels: yes
</pre>

The <dfn caniuse="insert-adjacent"><code>insertAdjacentElement(<var>where</var>, <var>element</var>)</code></dfn>
method has a rich history.
