The happygilmore method seems to no longer work (and, he said, is also a risky approach). I suggest using the tooltip widget API by setting the following parameters:
position: { collision: 'none' }, hide: false
The collision: none parameter stops the jQuery user interface, trying to do something interesting to resolve conflicts, and hide: false stops it from using fade animation to slowly remove the tooltip; whose delay causes a collision in the first place. In my opinion, this looks great, without the fade animation.
Dimmsum
source share