/* card coordinates */
.movable {
  top: 0px;
  left: 0px;
}

/* enable perspective and make the container a relative parent for absolute positioning */
.perspective {
  perspective: 400px;
  position: relative;
}

/* set all width to equal */
.perspective, .card {
  width: 18rem;
}

/* set absolute position, and stack cards relative to .perspective */
.card {
  position: absolute ! important;
  top: 1px;
  left: 1px;
  backface-visibility: hidden;
}


/* front pane, placed above back */
.card.front {
    z-index: 2;
    /* transform: rotateY(0deg); */
}

/* back, initially hidden pane */
.card.back {
    transform: rotateY(180deg);
}

.card.selected {
  --bs-card-border-color: var(--bs-primary);

}