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

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

    .flip-container.hover .back {
        -webkit-backface-visibility: visible;
        -moz-backface-visibility: visible;
        -o-backface-visibility: visible;
        backface-visibility: visible;
    }

    .flip-container.hover .front {
        -webkit-backface-visibility: hidden;
        -moz-backface-visibility: hidden;
        -o-backface-visibility: hidden;
        backface-visibility: hidden;
    }

.flipper {
    -webkit-transition: 0.5s;
    -webkit-transform-style: preserve-3d;
    -moz-transition: 0.5s;
    -moz-transform-style: preserve-3d;
    -o-transition: 0.5s;
    -o-transform-style: preserve-3d;
    transition: 0.5s;
    transform-style: preserve-3d;
    position: relative;
}

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

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