/* entire container, keeps perspective */

.flip-container {
  -webkit-perspective: 1000;
  -moz-perspective: 1000;
  perspective: 1000;
}

/* flip speed goes here */

.flipper {
  -webkit-transition: 0.6s;
  -moz-transition: 0.6s;
  transition: 0.6s;
  -webkit-transform-style: preserve-3d;
  -moz-transform-style: preserve-3d;
  transform-style: preserve-3d;
  position: relative;
}

/* hide back of pane during swap */

.front,
.back {
  -webkit-backface-visibility: hidden;
  -moz-backface-visibility: hidden;
  backface-visibility: hidden;
  position: absolute;
  top: 0;
  left: 0;
}

/* front pane, placed above back */

.front { z-index: 2; }

/* back, initially hidden pane */

.back {
  -webkit-transform: rotateY(180deg);
  -moz-transform: rotateY(180deg);
  transform: rotateY(180deg);
}

/*.flip-container:hover .flipper, .flip-container.hover .flipper, */

.flip-container.flip .flipper {
  -webkit-transform: rotateY(180deg);
  -moz-transform: rotateY(180deg);
  transform: rotateY(180deg);
}