Defines the visible title, label or thumbnail for content that is initially hidden. Clicking on the element content makes the widget:detail visible.
The pseudo-class selector setting of :mcs-unfolded {display: none} on the summary element will hide it when the widget is in the unfolded state.
<?xml version="1.0" encoding="UTF-8"?>
<html xmlns="http://www.w3.org/2002/06/xhtml2"
xmlns:widget="http://www.volantis.com/xmlns/2006/05/widget">
<head>
<title>widget:folding-item</title>
</head>
<body>
<widget:folding-item>
<widget:summary>List of cities</widget:summary>
<widget:detail>
<ul>
<li><a href="http://www.ankara-bel.gov.tr">Ankara</a></li>
<li><a href="http://www.berlin.de">Berlin</a></li>
<li><a href="http://www.budapest.hu">Budapest</a></li>
<li><a href="http://www.krakow.pl">Cracow</a></li>
</ul>
</widget:detail>
</widget:folding-item>
</body>
</html>