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<?xml version="1.0" encoding="utf-8"?>
<head>
<title>Drag and drop of overlapping links: absolute position</title>
<style type="text/css">
span, strong
{color:green;
background-color:yellow;}
strong
{color:red;}
div
{height:2em;
position:absolute;
top:10px;
left:10px;}
div + div
{z-index:2;}
p
{margin-top:3em;}
</style>
<script type="application/ecmascript">
function start(event,feedback)
{event.dataTransfer.effectAllowed = 'copy';
event.dataTransfer.addElement(document.querySelector(feedback));}
</script>
</head>
<body>
<div>
<a href="data:text/plain,1" ondragstart="start(event,'strong')"> </a>
</div>
<div>
<a href="data:text/plain,2" ondragstart="start(event,'span')">Link</a>
</div>
<p>Try to drag link above. You should see word <span>PASS</span> not <strong>FAIL</strong> in feedback overlay all the time.</p>
</body>
</html>