#coin {
    margin: 0 auto;
    width: 100px;
    height: 100px;
    cursor: pointer;
}

    #coin div {
        width: 100%;
        height: 100%;
        -webkit-border-radius: 50%;
        -moz-border-radius: 50%;
        border-radius: 50%;
        -webkit-box-shadow: inset 0 0 45px rgba(255,255,255,.3), 0 12px 20px -10px rgba(0,0,0,.4);
        -moz-box-shadow: inset 0 0 45px rgba(255,255,255,.3), 0 12px 20px -10px rgba(0,0,0,.4);
        box-shadow: inset 0 0 45px rgba(255,255,255,.3), 0 12px 20px -10px rgba(0,0,0,.4);
    }

.side-a {
    background-image: url('/Images/UI/General/CoinSuccess.png');
}

.side-b {
    background-image: url('/Images/UI/General/CoinFail.png');
}

#coin {
    transition: -webkit-transform 1s ease-in;
    -webkit-transform-style: preserve-3d;
}

    #coin div {
        position: absolute;
        -webkit-backface-visibility: hidden;
    }

.side-a {
    z-index: 100;
}

.side-b {
    -webkit-transform: rotateY(-180deg);
}

#coin.heads {
    -webkit-animation: flipHeads 3s ease-out forwards;
    -moz-animation: flipHeads 3s ease-out forwards;
    -o-animation: flipHeads 3s ease-out forwards;
    animation: flipHeads 3s ease-out forwards;
}

#coin.tails {
    -webkit-animation: flipTails 3s ease-out forwards;
    -moz-animation: flipTails 3s ease-out forwards;
    -o-animation: flipTails 3s ease-out forwards;
    animation: flipTails 3s ease-out forwards;
}

@-webkit-keyframes flipHeads {
    from {
        -webkit-transform: rotateY(0);
        -moz-transform: rotateY(0);
        transform: rotateY(0);
    }

    to {
        -webkit-transform: rotateY(1800deg);
        -moz-transform: rotateY(1800deg);
        transform: rotateY(1800deg);
    }
}

@-webkit-keyframes flipTails {
    from {
        -webkit-transform: rotateY(0);
        -moz-transform: rotateY(0);
        transform: rotateY(0);
    }

    to {
        -webkit-transform: rotateY(1980deg);
        -moz-transform: rotateY(1980deg);
        transform: rotateY(1980deg);
    }
}