Great work. There's a couple of small issues. First, regardless of where you click on a card, when you start dragging the card will jump so that its centre is a

Great work. There's a couple of small issues. First, regardless of where you click on a card, when you start dragging the card will jump so that its centre is at the cursor position. Second, there is a mismatch on the Z-index used for dragging and that used when a card is dropped into place.