I tried out your demo page and (literally!) the first thing I did had a bug in it. Just bad luck?
There's an off-by-one error while dragging an item from the left container to the right container, but only when my mouse has just entered the right box. If I continue dragging my mouse horizontally then the item's drop placeholder corrects itself.
Screencast requires flash player :( I wish the day where I can forget about flash player will be gone soon...I want to watch your screencast but Adobe won't trick me into installing their malware again...
I tried out your demo page and (literally!) the first thing I did had a bug in it. Just bad luck?
There's an off-by-one error while dragging an item from the left container to the right container, but only when my mouse has just entered the right box. If I continue dragging my mouse horizontally then the item's drop placeholder corrects itself.
Screencast: http://screencast.com/t/Jw3No0wryqJ