Responsive Card Decks

Created by: DaSchTour

Although this may be a feature that could only be made using flexbox, but it would be nice to have responsive card decks. At the moment all cards inside a deck are squeezed into one row. It would be great if there was a possibility to add a class to the card-deck that defines the width of each card for each breakpoint. Something like card-deck cards-sm-6 cards-md-4 cards-lg-3. On mobile devices all cards will be stacked. On sm there are two cards each row, md has 3 cards and lg has 4 cards per row.

And that's not the same as putting cards into normal grid columns as they will not have the same hight when they are not in a deck.