/* entire container, keeps perspective */

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

/* flip the pane when hovered */

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

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

/* flip speed goes here */

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

/* hide back of pane during swap */

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

/* front pane, placed above back */

.front-face {
    z-index: 2;
}

/* back, initially hidden pane */

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