.flip-card {
  /*background-color: transparent;*/
  width: 40px;
  /*height: 200px;*/
  /*border: 1px solid #f1f1f1;*/
  perspective: 1000px; /* Remove this if you don't want the 3D effect */
}

/* This container is needed to position the front and back side */
.flip-card-inner {
  position: relative;
  /*width: 100%;*/
  /*height: 100%;*/
  text-align: center;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

/* Do an horizontal flip when you move the mouse over the flip box container */
.flip-card:hover .flip-card-inner {
  /*transform: rotateY(180deg);*/
}

/* Position the front and back side */
.flip-card-front, .flip-card-back {
  position: absolute;
  /*width: 100%;*/
  /*height: 100%;*/
  -webkit-backface-visibility: hidden; /* Safari */
  backface-visibility: hidden;
}

/* Style the front side (fallback if image is missing) */
.flip-card-front {
  /*background-color: #bbb;*/
  /*color: black;*/
}

/* Style the back side */
.flip-card-back {
  /*background-color: dodgerblue;*/
  /*color: white;*/
  transform: rotateY(180deg);
}