The following tutorial shows you how to create a Collapsible Panel with Spry, an interactive feature that enables visitors to your site to open and close panels to display more or less information without reloading the page. In Dreamweaver CS3, Adobe added the Spry framework – a new set of tools you can use to create drop-down menus, collapsible panels, and other advanced features. You’ll find these options in a new Insert bar at the top of the work area.