title: css root element margin
body: <p>In css <strong>html</strong> element is said to be the <strong>root</strong> element,<br>
  and as I'm reading in <a href="http://phrogz.net/css/htmlvsbody.html" rel="nofollow">this article</a> its width and height are governed by the browser window/frame. </p>
  
  <p>So, does it make any sense to apply margins to it ?</p>
  
  <p>I think it doesn't because if it is the root element it's not supposed to be contained in a higher level element.</p>
  
  <p>Howewer every browser allows you to add margin to <strong>html</strong> element, any explainations ?</p>