Test Case Boilerplate
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HTML
<script src="http://code.jquery.com/ui/jquery-ui-git.js"></script>
<link rel="stylesheet" href="http://code.jquery.com/ui/jquery-ui-git.css">
<div style="position:absolute;left:0px;right:0px;margin:auto;width:50%;height:50%;background-color:blue;color:white;">DRAG ME<br>-buggy with FF, IE, Opera,<br>-works find with Chrome, Safari
</div>
JavaScript
$("div").draggable();