.flip-card {
  background-color: transparent;
  width: 200px;
  height: 120px;
  perspective: 1000px;
  display: inline-block;
  margin: 10px;
  cursor: pointer;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner,
.flip-card.flipped .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border: 2px solid #ccc;
  border-radius: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.2em;
  background: #fff;
}

.flip-card-back {
  transform: rotateY(180deg);
  background: #f3f3f3;
}