<!DOCTYPE html>
<html>
<script src="resources/polyfill.js"></script>

<div id="host1"><div>B</div></div>

<script>
var shadowRoot1 = host1.webkitCreateShadowRoot();
shadowRoot1.innerHTML = '<shadow></shadow>';

var shadowRoot2 = host1.webkitCreateShadowRoot();
shadowRoot2.innerHTML = '<div id="host3"><shadow></shadow></div>';

var host3 = shadowRoot2.getElementById('host3');
var shadowRoot3 = host3.webkitCreateShadowRoot();
shadowRoot3.innerHTML = '<div>A</div><content select="div"></content><div>C</div>';
</script>

</html>