html {
  box-sizing: border-box;
}

*, *:before, *:after {
  box-sizing: inherit;
}

.text-center {
  text-align: center;
}

.color-white {
  color: #fff;
  font-weight: 600;
}

.box-container {
  align-items: center;
  display: flex;
  flex-direction: column;
  width: 100%;
}

@media screen and (min-width:992px) {
  .box-container {
    flex-direction: row
  }
}

.box-item {
  position: relative;
  -webkit-backface-visibility: hidden;
  width: 25%;
  max-width: 100%;
}

.flip-box {
  -ms-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  perspective: 1000px;
  -webkit-perspective: 1000px;
}

.flip-box-front, .flip-box-back {
  background-size: cover;
  background-position: center;
  min-height: 340px;
  -ms-transition: transform 0.7s cubic-bezier(.4, .2, .2, 1);
  transition: transform 0.7s cubic-bezier(.4, .2, .2, 1);
  -webkit-transition: transform 0.7s cubic-bezier(.4, .2, .2, 1);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  background-color: 0, 0, 0 rgba(0, 0, 0, 0.8);
}

.overlay {
  position: fixed;
  /* Sit on top of the page content */
  width: 100%;
  /* Full width (cover the whole page) */
  height: 100%;
  /* Full height (cover the whole page) */
  background-color: rgba(0, 0, 0, 0.5);
  /* Black background with opacity */
  z-index: 2;
  /* Specify a stack order in case you're using a different order for other elements */
}

.flip-box-front {
  -ms-transform: rotateY(0deg);
  -webkit-transform: rotateY(0deg);
  transform: rotateY(0deg);
  -webkit-transform-style: preserve-3d;
  -ms-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.flip-box:hover .flip-box-front {
  -ms-transform: rotateY(-180deg);
  -webkit-transform: rotateY(-180deg);
  transform: rotateY(-180deg);
  -webkit-transform-style: preserve-3d;
  -ms-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.flip-box-back {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  -ms-transform: rotateY(180deg);
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
  -webkit-transform-style: preserve-3d;
  -ms-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.flip-box:hover .flip-box-back {
  -ms-transform: rotateY(0deg);
  -webkit-transform: rotateY(0deg);
  transform: rotateY(0deg);
  -webkit-transform-style: preserve-3d;
  -ms-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.flip-box .inner {
  position: absolute;
  left: 0;
  width: 100%;
  padding: 60px;
  outline: 1px solid transparent;
  -webkit-perspective: inherit;
  perspective: inherit;
  z-index: 2;
  transform: translateY(-50%) translateZ(60px) scale(.94);
  -webkit-transform: translateY(-50%) translateZ(60px) scale(.94);
  -ms-transform: translateY(-50%) translateZ(60px) scale(.94);
  top: 50%;
}

.flip-box-img {
  margin-top: 25px;
}

.flip-box-button {
  background-color: transparent;
  border: 2px solid #fff;
  border-radius: 2px;
  color: #fff;
  cursor: pointer;
  font-size: 20px;
  font-weight: bold;
  margin-top: 25px;
  padding: 15px 20px;
  text-transform: uppercase;
}

@media only screen and (max-width: 479px) {
  .box-item {
    width: 100%;
  }
}

@media only screen and (max-width: 767px) {
  .box-item {
    width: 100%;
  }
}