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 id="draggable" class="ui-widget-content">
<img src="http://d3pr5r64n04s3o.cloudfront.net/038_ImageTypes/PNG24-example.png">
</div>
JavaScript
$( "#draggable" ).draggable({ distance: 20 });