ASP.net CollapsiblePanel CSS

Ok, the question is pretty simple. I've managed to integrade collapsible panel for my first time and I'm looking for the blue bar look that you see so common. A good example is here:
http://www.asp.net/AJAX/AjaxControlToolkit/Samples/CollapsiblePanel/CollapsiblePanel.aspx
The example gives some css that gives it different colors that the one on the main page. Does anyone have any css that is somewhat similar to the page shown? thanks, Chris :)