Draggable Div over Div

Draggable Div over Div

Hello,

I'm very very new but I like to use this great script: http://jqueryui.com/demos/draggable/#default

It works fine but I like to have the draggable div over the content div. I tried to set the position (in my css file) as "absolute" with "top: 1px" und "right: 1px" but then the div is no longer draggable.

Also tried to set the z-index on 1 and 2 for the draggable div. It's not working..

Anyone can help?

Thanks