title: CSS opacity only to background color, not the text on it?
body: <p>Can I assign the <code>opacity</code> property to the <code>background</code> property of a <code>div</code> only and not to the text on it?</p>
  
  <p>I've tried:</p>
  
  <pre><code>background: #CCC;
  opacity: 0.6;
  </code></pre>
  
  <p>but this doesn't change the opacity.</p>