title: Darken CSS background image?
body: <p>Should be a fairly simple question. In my website I do this: </p>
  
  <pre><code>#landing-wrapper {
      display:table;
      width:100%;
      background:url('landingpagepic.jpg');
      background-position:center top;
      height:350px;
  }
  </code></pre>
  
  <p>What I'd like to do is make the background image darker. Since I have UI elements inside this DIV I don't think I can really place another div over it to darken it. Suggestions? </p>