anchor.diff:    </div>
   </div>
   </body>
  -</html>
  +</html>
positive.code: <html>
  <head>
    <link href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.1.1/css/bootstrap.min.css" rel="stylesheet">
    <style type="text/css">
      body {
        margin: 50px;
  
negative.code:       content: " (unapproved)"
      }
    </style>
  </head>
  <body>
  <div class="container">
  