title: How to change background color on jumbotron?
body: <p>I have this html code:</p>
  
  <pre><code>&lt;div class="jumbotron"&gt;
      &lt;h1&gt;Eye Of Heaven v3.0&lt;/h1&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I have tried this css code, it's not working and no effect. What's the proper way to apply it?</p>
  
  <pre><code>.jumbotron{
      background-color:##8A2BE2;
      text-align:center;
  }
  </code></pre>