Subject of the issue

I'm trying to let the grid stack auto scroll the container (not browser body but a DIV with scroll bar) and it doesn't work.
I already set the draggable: { scroll: true }.

Your environment

• v0.2.6; v0.3.0

Steps to reproduce

I directly modified on the demo/float.html by adding the following part.

1. Change the grid stack option like below and the auto scroll worked when there is browser scroll bar.
   
2. After put the grid stack element inside a DIV, the auto scroll doesn't work anymore.
   
   

Expected Behavior

The auto scroll should work inside the DIV.

Thanks a lot!