title: How to change font color in reveal.js?
body: <p>I try to change the color of the font in just one section because I added a background picture and you cant read the white otherwise: </p>
  
  <pre><code>            &lt;section data-background="media/imagename.jpg"&gt;             
                  &lt;h2&gt;blablabla&lt;/h2&gt;
              &lt;/section&gt;
  </code></pre>
  
  <p>What should I add here to make "blablabla" look black?</p>
  
  <p>Thanks!</p>
  
  <p>Lala</p>