Only drag inside parent container - With overflow hidden

[nickycdk]

I guess this is more of a question, than an actual bug.

Is it possible to make it so that it's only possible to drag items within a parent container with "overflow:hidden", like this: https://jmp.sh/K8bAP8c

Even if i have overflow:hidden on my parent container, it still seems like when im dragging it's placing the dragged item on top of the page, instead when it should be hidden when dragging it outside the container, due to the overflow:hidden on my parent container?

Is there anyway this is possible to achieve? I haven't found any way so far :(

[TerryChenUI]

do you fix it?