<!DOCTYPE html>
<html>

<body>

<p>When an anchor tag catch 'href' attribute or release 'href' attribute, distribution should happen.</p>

<div><a id="anchor1" href="http://www.example.com/">Anchor 1</a></div>
<div><a id="anchor4" href="http://www.example.com/">Anchor 4</a></div>

</body>
</html>