title: Overwriting CSS Bootstrap
body: <p>I need to surcharge Bootstrap CSS and for that i have created a new overwrite.css file. </p>
  
  <p>In my different test I need to display a black background (It's only for test) but nothing.</p>
  
  <pre><code>&lt;div id="myBackground"&gt; &lt;/div&gt;
  </code></pre>
  
  <p>CSS:</p>
  
  <pre><code>#myBackground  { background-color: black; width: 100px; height: 100px; }
  </code></pre>