Work with stacked cards

If an application opens another window, such as a new email message from your inbox, the new card joins a stack with the card that opened it. Each card in a stack is still its own window.

You can also stack and unstack cards yourself (learn how).

To see the cards in a stack better, pinch out on it in Card view. To close a stack, throw its cards off the top of the screen one at a time.