title: Why is the list element in the navigation sidebar not being styled?
body: <p>I'm attempting to create a rudimentary sidebar, and this is my first attempt at it:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>body {
  font-family: courier;
  font-size: 18px;
      }
  
  h1, h2, h3, h4 {
  text-decoration: underline;
  }
  
  .content {
      margin-left: 200px;
  }
  .side {
      position: fixed;
      height: 100%;
      border: 5px solid black;
      top: 0;
      left: 0;
      background: grey;
      width: 180px;
      padding: 10px;
  
  #nav {
    list-style-type: square;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;!DOCTYPE HTML&gt;
  
  &lt;html&gt;
  
    &lt;head&gt;
      &lt;meta charset="utf-8"&gt;
      &lt;link rel="stylesheet" href="css/styles.css" /&gt;
      &lt;title&gt;Test Page For Fixed Sidebar&lt;/title&gt;
    &lt;/head&gt;
  
    &lt;body&gt;
  
      &lt;div class="content"&gt;
        &lt;h1&gt;Information&lt;/h1&gt;
        &lt;p&gt; To your left is a sidebar containing links &lt;/p&gt;
        &lt;div class="side"&gt;
            &lt;ul id="nav"&gt;
                &lt;li&gt;&lt;a href=""&gt;Link 1&lt;/a&gt;&lt;/li&gt;
                &lt;li&gt;&lt;a href=""&gt;Link 2&lt;/a&gt;&lt;/li&gt;
                &lt;li&gt;&lt;a href=""&gt;Link 3&lt;/a&gt;&lt;/li&gt;
            &lt;/ul&gt;
        &lt;/div&gt;
      &lt;/div&gt;
  
    &lt;/body&gt;
  
  &lt;/html&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>I seem to have a problem with styling the navigation sidebar, i.e. the element <code>ul id=nav</code>. I am trying to change the list's bullets to squares, and have even tried to remove them completely, but any changes to the corresponding stylesheet are not reflected on the page. I am able to style other elements it just seems to be this one which is causing me a problem. </p>
  
  <p>Any help would be appreciated, thanks.</p>