w DOM is still a work in progress, but basically a proposed way to have an "isolated" DOM encapsulated within your app's DOM.</p>
<p>Creating a re-usable "widget" or control might be a good use-case for this. Browsers implement some of their controls using their own version of a shadow DOM.</p>
<ul>
<li><a href="http://www.w3.org/TR/shadow-dom/">W3C Working Draft</a></li>
<li><a href="http://glazkov.com/2011/01/14/what-the-heck-is-shadow-dom/">What the Heck is Shadow DOM?</a></li>
</ul>
</section>
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