https://shopify.github.io/draggable/
origin - http://www.pipiscrew.com/?p=10275 draggable-a-lightweight-responsive-modern-drag-and-drop-library
https://shopify.github.io/draggable/
origin - http://www.pipiscrew.com/?p=10275 draggable-a-lightweight-responsive-modern-drag-and-drop-library