gistfile1.css

.fp-flipcard {
    perspective: 1000px;
    -webkit-perspective: 1000px;
    -moz-perspective: 1000px;
}

.fp-flipcard .fp-faces {
    transition: transform 1s;
    -webkit-transition: -webkit-transform 1s;
    -moz-transition: -moz-transform 1s;
}

.fp-flipcard.fp-backface .fp-faces {
    transform: rotateY(180deg);
    -webkit-transform: rotateY(180deg);
    -moz-transform: rotateY(180deg);
}

.fp-flipcard .fp-faces,
.fp-flipcard .fp-face,
.fp-flipcard .fp-face .fp-inner {
    transform-style: preserve-3d;
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
}

.fp-flipcard .fp-face,
.fp-flipcard .fp-face .fp-inner {
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    -moz-backface-visibility: hidden;
}

.fp-flipcard .fp-back {
    transform: rotateY(180deg);
    -webkit-transform: rotateY(180deg);
    -moz-transform: rotateY(180deg);
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    position: absolute;
    right: 0; top: 0;
    width: 100%; height: 100%;
}