I have a test page that demonstrates the problem:
http://www.hindbrain.net/ex10.phpI have containment: 'parent' for the draggable div. If you try to move it, it jump above
the body (window), out of sight. I've had different sizes for parts of this page and often
you can see it poking down from the top of the screen. How can I get this containment to
work?