title: How to position a background image in reveal.js?
body: <p>I want to have a background image on the right hand side of one slide in a reveal.js presentation.</p>
  
  <p>I added the image to the slide like this:</p>
  
  <pre><code> &lt;section data-background="myImage.jpg"&gt;
    // content
   &lt;/section&gt;
  </code></pre>
  
  <p>How can I add css styles to make it appear on the right edge of the screen?</p>