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<?xml version="1.0" encoding="utf-8"?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Drag feedback for partly visible image: negative margins</title>
<style type="text/css">
p:first-child
{margin:-50px 0 0 -50px;}
img
{height:100px;
width:100px;}
</style>
</head>
<body>
<p><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAYAAABytg0kAAAAEElEQVR42mNgaGD4D8YwBgAw9AX9Y9zBwwAAAABJRU5ErkJggg==" alt="PNG green pixel" ondragstart="event.dataTransfer.effectAllowed = 'copy'"/></p>
<p>Try to drag green box above. Feedback overlay should be green square.</p>
</body>
</html>
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