For example, on http://www.lynda.com/Rhino-4-tutoria...g/59223-2.html you can click on the arrow and it will hide/reveal the contents inside. It would be better if it did a fade too, Any ideas?
You can do something like this:
This starts with the target hidden. If you want to start with it visible, just remove the $("#target").hide();
<a href='#' class='arrow closed_arrow'>Click Me</a>
<p>This is the target of the arrow</p>
Obviously, you're going to want to change the "click me" to an arrow using the classes 'open_arrow' and 'closed_arrow' appropriately.
Hope that helps!