AخA
 
<!DOCTYPE html>
<html lang='en-us'>
<head><style type='text/css'>
    body{background-color:#343434;}
    article{background-color:#f4f4f4; padding:2px 5px;}
</style></head>
<body>
<article>   <div>       
    <h1>This is an article's heading</h1>
    <p>This article element is nesting a div element!</p>
    <p>Such and similar structures make migration to HTML5 easier.</p>
</div></article>
</body>
</html>