Some effect inspiration for card stacks. The idea is to show animation ideas for positive (accept) or negative (reject) feedback on a generic card element.
Baraja is an experimental and fun jQuery plugin that allows to move elements in a card-like fashion and spread them like one would spread a deck of cards on a table. It uses CSS transforms for rotating and translating the items.
There are several options available that will create various spreading possibilities of the items, for example, moving the items laterally or rotating them in a fan-like way.