<!DOCTYPE html>
<!--
 | The surface color or image of the padding area is specified via
 | the "background" property.
 |   https://www.w3.org/TR/CSS21/box.html#padding-properties
 -->
<html>
<head>
  <style>
    div {
      background-color: #2196f3;
      padding: 50px;
    }
  </style>
  <script>
    if (window.testRunner) {
      window.testRunner.waitUntilDone();
    }

    var image = new Image();
    var image_name = 'cobalt.png';

    image.onload = function() {
      var cobalt = document.getElementById('div_tag');
      cobalt.style.backgroundImage = 'url(' + image_name + ')';

      if (window.testRunner) {
        window.testRunner.notifyDone();
      }
    }

    image.src = image_name;
  </script>
</head>
<body>
  <div id='div_tag'></div>
</body>
</html>