title: CSS background-size cover and background-position
body: <p>HTML: </p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>#backgroundproduct {
    position: fixed;
    top: 5%;
    left: 5%;
    width: 90%;
    height: 90%;
    z-index: 12;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    background-position: top;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div id="backgroundproduct" style="background-image: url(http://example.com/example.jpg)"&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>I'm using a images as a background image, only the lower part of the image is more important than the top.</p>
  
  <p>How can I make the background go up a little?  </p>