Spry widgets are replaced with jQuery widgets in Dreamweaver CC and later. While you can still modify existing spry widgets on your page, you cannot add new spry widgets.
A Spry widget is a page element that provides a richer user experience by enabling user interaction. A Spry widget comprises the following parts:
You can also insert Spry widgets by using the Spry category in the Insert panel.
For details on styling specific widgets, see the appropriate customization sections for each widget.
You can also format a Spry widget by editing styles in the CSS panel, just as you would for any other styled element on the page.
There are many more web widgets available than the Spry widgets that install with Dreamweaver. The Adobe Exchangeprovides web widgets that have been developed by other creative professionals.
For a video overview from the Dreamweaver engineering team about working with web widgets, see www.adobe.com/go/dw10widgets.