title: Increase navbar text input length
body: <p>The default "search box" in the navbar is:</p>
  
  <pre><code>&lt;form class="navbar-form navbar-left" role="search"&gt;
    &lt;div class="form-group"&gt;
      &lt;input type="text" class="form-control" placeholder="Search"&gt;
    &lt;/div&gt;
    &lt;button type="submit" class="btn btn-default"&gt;Submit&lt;/button&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>I'm trying to increase the length of the <code>input</code> horizontally so I can see and type more text. </p>
  
  <p>How can I increase the length of the text box?</p>