title: Bootstrap 3 navigation bar right margin is not supposed to be -15px
body: <p>In my web page I have a Bootstrap 3 navbar:</p>
  
  <pre><code>&lt;body&gt;
  
  &lt;nav class="navbar navbar-default navbar-fixed-top" role="navigation"&gt;
    &lt;div class="navbar-header"&gt;
      &lt;a class="navbar-brand" href="#"&gt;Teachlab&lt;/a&gt;
    &lt;/div&gt;
  
    &lt;div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"&gt;
  
      &lt;ul class="nav navbar-nav navbar-right"&gt;
        &lt;li&gt;&lt;%= link_to "Home", '#' %&gt;&lt;/li&gt;
        &lt;li&gt;&lt;%= link_to "Help", '#' %&gt;&lt;/li&gt;
        &lt;li&gt;&lt;%= link_to "Sign in", '#' %&gt;&lt;/li&gt;
      &lt;/ul&gt;
    &lt;/div&gt;
  &lt;/nav&gt;
  
  &lt;div class="container"&gt;
    &lt;%= yield %&gt;
  &lt;/div&gt;
  
  &lt;/body&gt;
  </code></pre>
  
  <p>The problem is that navigation is to close to the edge of the screen. If I remove <em>navbar-fixed-top</em> from the navigation bar, it's working as I want. </p>
  
  <p>Any hints?</p>