.cube {
    position: relative;
    width: 60px;
    height: 60px;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    /*transform-origin*/
    -webkit-transform-origin: 30px 30px;
    -moz-transform-origin: 30px 30px;
    -ms-transform-origin: 30px 30px;
    -o-transform-origin: 30px 30px;
    transform-origin: 30px 30px;
    /*transform*/
    -webkit-transform: perspective(300px);
    -moz-transform: perspective(300px);
    -ms-transform: perspective(300px);
    -o-transform: perspective(300px);
    transform: perspective(300px);
    /*transform-style*/
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    -ms-transform-style: preserve-3d;
    -o-transform-style: preserve-3d;
    transform-style: preserve-3d;
}



.cube-button {
    cursor: pointer;
}
.cube-button:hover,
.cube-button.hover {
    color: white;
    background: rgba(0,153,255,0.5);
    outline: 1px solid #09f;
}


.cube-face,
.cube-edge,
.cube-corner {
    /*backface-visibility*/
    -webkit-backface-visibility: hidden;
    -moz-backface-visibility: hidden;
    -ms-backface-visibility: hidden;
    -o-backface-visibility: hidden;
    backface-visibility: hidden;
}

.cube-face {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    color: black;
    font-family: sans-serif;
    background: #eee;
}

.cube-face-label {
    display: block;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    height: 10px;
    color: #606060;
    font-family: "Trebuchet MS", Helvetica, Arial, sans-serif;
    line-height: 13px;
    text-align: center;
    font-size: 13px;
    text-transform: uppercase;
    -webkit-transform: scaleY(2);
    -moz-transform: scaleY(2);
    -ms-transform: scaleY(2);
    -o-transform: scaleY(2);
    transform: scaleY(2);
}

.cube-face-button {
    position: absolute;
    top: 16px;
    left: 16px;
    bottom: 16px;
    right: 16px;
}

.cube-face-front {
    /*transform*/
    -webkit-transform: rotateY(0deg) translateZ(30px);
    -moz-transform: rotateY(0deg) translateZ(30px);
    -ms-transform: rotateY(0deg) translateZ(30px);
    -o-transform: rotateY(0deg) translateZ(30px);
    transform: rotateY(0deg) translateZ(30px);
}

.cube-face-back {
    /*transform*/
    -webkit-transform: rotateY(180deg) translateZ(30px);
    -moz-transform: rotateY(180deg) translateZ(30px);
    -ms-transform: rotateY(180deg) translateZ(30px);
    -o-transform: rotateY(180deg) translateZ(30px);
    transform: rotateY(180deg) translateZ(30px);
}

.cube-face-right {
    /*transform*/
    -webkit-transform: rotateY(90deg) translateZ(30px);
    -moz-transform: rotateY(90deg) translateZ(30px);
    -ms-transform: rotateY(90deg) translateZ(30px);
    -o-transform: rotateY(90deg) translateZ(30px);
    transform: rotateY(90deg) translateZ(30px);
}

.cube-face-left {
    /*transform*/
    -webkit-transform: rotateY(-90deg) translateZ(30px);
    -moz-transform: rotateY(-90deg) translateZ(30px);
    -ms-transform: rotateY(-90deg) translateZ(30px);
    -o-transform: rotateY(-90deg) translateZ(30px);
    transform: rotateY(-90deg) translateZ(30px);
}

.cube-face-top {
    /*transform*/
    -webkit-transform: rotateX(90deg) translateZ(30px);
    -moz-transform: rotateX(90deg) translateZ(30px);
    -ms-transform: rotateX(90deg) translateZ(30px);
    -o-transform: rotateX(90deg) translateZ(30px);
    transform: rotateX(90deg) translateZ(30px);
}

.cube-face-bottom {
    /*transform*/
    -webkit-transform: rotateX(-90deg) translateZ(30px);
    -moz-transform: rotateX(-90deg) translateZ(30px);
    -ms-transform: rotateX(-90deg) translateZ(30px);
    -o-transform: rotateX(-90deg) translateZ(30px);
    transform: rotateX(-90deg) translateZ(30px);
}


.cube-face-edge {
    position: absolute;
}
.cube-face-edge-top {
    top: 0;
    right: 16px;
    bottom: 44px;
    left: 16px;
}
.cube-face-edge-right {
    top: 16px;
    right: 0;
    bottom: 16px;
    left: 44px;
}
.cube-face-edge-left {
    top: 16px;
    right: 44px;
    bottom: 16px;
    left: 0;
}
.cube-face-edge-bottom {
    top: 44px;
    right: 16px;
    bottom: 0;
    left: 16px;
}


.cube-face-corner {
    position: absolute;
}
.cube-face-corner-top-right {
    top: 0;
    right: 0;
    bottom: 44px;
    left: 44px;
}
.cube-face-corner-bottom-right {
    top: 44px;
    right: 0;
    bottom: 0;
    left: 44px;
}
.cube-face-corner-bottom-left {
    top: 44px;
    right: 44px;
    bottom: 0;
    left: 0;
}
.cube-face-corner-top-left {
    top: 0;
    right: 44px;
    bottom: 44px;
    left: 0;
}

/*
.cube-button-face-edge {
    outline: 1px solid green;
}
.cube-button-face-corner {
    outline: 1px solid red;
}
*/