<!DOCTYPE html>
<html>
<head>
<title>This tests when the gap between the graphics layer and its associated renderer changes dynamically.</title>
<style>
div {
  transform: translateZ(0);
  width: 20px;
  height: 20px;
  background-color: green;
  position: absolute;
}

.boxShadow {
  background-color: yellow;
}
</style>
<script>
  if (window.testRunner)
    testRunner.waitUntilDone();

  function runTest() {
  	setTimeout(function() {
  	  var elements = document.getElementsByClassName("boxShadow")
  	  for (var i = 0; i < elements.length; ++i)
        elements[i].style.boxShadow = "0px 0px 10px transparent"; 
      if (window.testRunner)
        testRunner.notifyDone();
      }, 0);
  }
</script>
</head>
<body onload="runTest()">
<p id="container"></p>
<script>
  var subpixel = 0;
  var container = document.getElementById("container");
  for (i = 0; i < 20; ++i) {
    for (j = 0; j < 20; ++j) {
      var outer = document.createElement("div");
      outer.style.top = 25 * i + subpixel + "px";
      outer.style.left = 25 * j + subpixel + "px";
      outer.className = "boxShadow";
      outer.appendChild(document.createElement("div"));
      container.appendChild(outer);
      subpixel += 0.1;
    }
  }
</script>
</body>
</html>