title: Boxes not showing up
body: <p>I'm creating a website for me and my friends, and I'm trying to create boxes to put navigation (login, register, my account, etc), but I seemed to have messed up somewhere along the way. At first I thought that the HTML and CSS files weren't linking, but that doesn't seem to be the case. The boxes are not showing up, only the link is.</p>
  
  <p>Here's the part of the HTML file I am talking about:</p>
  
  <pre><code>&lt;div class="nav"&gt;
      &lt;div class="container"&gt;
          &lt;ul&gt;
              &lt;li&gt;&lt;a href="#"&gt;My account&lt;/a&gt;&lt;/li&gt;
          &lt;/ul&gt;
      &lt;/div&gt;
  &lt;/div&gt;    
  </code></pre>
  
  <p>And here's the full css file:   </p>
  
  <pre><code>a {   
      color: #CC0000; 
  }
  
  .nav {    
      background-color: #9A9A9A;    
      border-radius: 3px;
  }    
  </code></pre>
  
  <p>I know that the CSS and HTML files are linked because the links on the page are red. I assume I'm missing something, but I am not sure what.</p>