LayoutTests/compositing/columns/hittest-composited-in-paginated.html - WebKit - Git at Google

 <html>
 <head>
     <script>
         if (window.testRunner)
             testRunner.dumpAsText();

         if (window.internals)
             internals.setPagination("LeftToRightPaginated", 10, 400);

         function dumpLayers()
         {
             var result = "Element at 500, 200: " + document.elementFromPoint(500, 200).classList + "\n";

             if (window.testRunner)
                 result += window.internals.layerTreeAsText(document);

             document.getElementById('layers').innerText = result;
         }

         window.addEventListener('load', dumpLayers, false);
     </script>
     <style>
     .spacer {
         height: 350px;
         width: 100%;
         margin: 10px;
         background-color: silver;
     }

     .box {
         height: 100px;
         width: 100px;
         margin: 10px;
         background-color: blue;
     }
     .composited {
       -webkit-transform: translateZ(0);
     }
     </style>
 </head>
 <body>

   <div class="spacer"></div>
   <div class="spacer"></div>
   <div class="composited box"></div>
 <pre id="layers">Layer tree goes here in DRT</pre>

 </body>
 </html>
	<html>
	<head>
	<script>
	if (window.testRunner)
	testRunner.dumpAsText();

	if (window.internals)
	internals.setPagination("LeftToRightPaginated", 10, 400);

	function dumpLayers()
	{
	var result = "Element at 500, 200: " + document.elementFromPoint(500, 200).classList + "\n";

	if (window.testRunner)
	result += window.internals.layerTreeAsText(document);

	document.getElementById('layers').innerText = result;
	}

	window.addEventListener('load', dumpLayers, false);
	</script>
	<style>
	.spacer {
	height: 350px;
	width: 100%;
	margin: 10px;
	background-color: silver;
	}

	.box {
	height: 100px;
	width: 100px;
	margin: 10px;
	background-color: blue;
	}
	.composited {
	-webkit-transform: translateZ(0);
	}
	</style>
	</head>
	<body>

	<div class="spacer"></div>
	<div class="spacer"></div>
	<div class="composited box"></div>
	<pre id="layers">Layer tree goes here in DRT</pre>

	</body>
	</html>