.fs-1 {
  font-size: calc(1.375rem + 1.5vw) !important;
}
.fs-2 {
  font-size: calc(1.325rem + 0.9vw) !important;
}
.fs-3 {
  font-size: calc(1.3rem + 0.6vw) !important;
}
.fs-4 {
  font-size: calc(1.275rem + 0.3vw) !important;
}
.fs-5 {
  font-size: 1.25rem !important;
}
.fs-6 {
  font-size: 1rem !important;
}

.flip-box {
  background-color: transparent;
  height: 150px;
  width: 250px;
  /* border: 1px solid #f1f1f1; */
  perspective: 1000px;
}

@media screen and (min-width: 768px) {
  .flip-box {
    height: 180px;
    width: 300px;
  }
}

@media screen and (min-width: 992px) {
  .flip-box {
    height: 250px;
    width: 400px;
  }
}

.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: rotateX(180deg);
}

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

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

.flip-box-back {
  background-color: initial;
  color: #fff;
  transform: rotateX(180deg);
  border-radius: 50% 20% / 10% 40%;
  cursor: crosshair;
}