.card1-container {
  cursor: pointer;
  height: 150px;
  perspective: 600;
  position: relative;
  width: 150px;
}
.card1 {
  height: 100%;
  position: absolute;
  transform-style: preserve-3d;
  transition: all 1s ease-in-out;
  width: 100%;
}
.card1:hover {
  transform: rotateY(180deg);
}
.card1 .side1 {
  backface-visibility: hidden;
  border-radius: 6px;
  height: 100%;
  position: absolute;
  overflow: hidden;
  width: 100%;
}
.card1 .back1 {
  background: #eaeaed;
  color: #0087cc;
  line-height: 150px;
  text-align: center;
  transform: rotateY(180deg);
}