anchor.diff:  <div class="container">
     <header>
  +  </header>
  +  <section id="typography">
       <h1>Typography</h1>
  -  </header>
  -  <section>
       <h2>Base</h2>
       <div>
         <h3>H1</h3>
  
positive.code:       </ul>
      </div>
    </section>
    <footer>
    <p class="pull-right"><a href="#">Back to top</a></p>
    </footer>
  
negative.code:         <li><a href="">The Certification Dashboard</a></li>
        </ul>
      </div>
      <h2>Email Header &amp; Footer</h2>
      <div>
        <h3>Email Header</h3>
  