.flip-box {
  background-color: transparent;
  width: 300px;
  height: 118px;
  border: 1px solid #f1f1f1;
  perspective: 1000px;
}

.flip-box-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

.flip-box:hover .flip-box-inner {
  transform: rotateY(180deg);
}

.flip-box-front, .flip-box-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
}

.flip-box-front {
  background-color: #bbb;
  color: black;
}

.flip-box-back {
  background-color: dodgerblue;
  color: white;
  transform: rotateY(180deg);
}

/*____________________________________________________-*/

.flip-box2 {
  background-color: transparent;
  width: 300px;
  height: 118px;
  border: 1px solid #f1f1f1;
  perspective: 1000px;
}

.flip-box-inner2 {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

.flip-box2:hover .flip-box-inner2 {
  transform: rotateX(180deg);
}

.flip-box-front2, .flip-box-back2 {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
}

.flip-box-front2 {
  background-color: #bbb;
  color: black;
}

.flip-box-back2 {
  background-color: dodgerblue;
  color: white;
  transform: rotateX(180deg);
}

.contador {
text-align:center;
}

/* Float four columns side by side */
.column {
  float: left;
  width: 30%;
  padding: 0 5px;
}

.column2 {
  float: left;
  width: 22%;
  padding: 0 3px;
}

.row {
margin:5%;
padding-top:10px;
}

/* Clear floats after the columns */
.row:after {
  content: "";
  display: table;
  clear: both;
}

/* Responsive columns */
@media screen and (max-width: 600px) {
  .column {
    width: 100%;
    display: block;
    margin-bottom: 10px;
  }
}

/* Style the counter cards */
.card {
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
  padding: 16px;
  text-align: center;
  background-color: white;
  color: navy;
}

.card2 {
  box-shadow: 0 5px 10px 0 rgba(0, 0, 0, 0.2);
  padding: 10px;
  text-align: center;
  background-color: white;
  color: navy;
}

.fa {font-size:50px;}