cube.css

* { box-sizing: border-box; }

body { font-family: sans-serif;
color: #000000; }

.scene {

width: 200px;
height: 300px;
border: 1px solid #CCC;
margin: 80px;
perspective: 400px;
}

.cube {
width: 200px;
height: 300px;
position: relative;
transform-style: preserve-3d;
transform: translateZ(-100px);
transition: transform 1s;
}

.cube.show-front  { transform: translateZ(-100px) rotateY(   0deg); }
.cube.show-right  { transform: translateZ(-100px) rotateY( -90deg); }
.cube.show-back   { transform: translateZ(-100px) rotateY(-180deg); }
.cube.show-left   { transform: translateZ(-100px) rotateY(  90deg); }


.cube__face {
position: absolute;
width: 200px;
height: 300px;
border: 2px solid black;
line-height: 200px;
font-size: 40px;
font-weight: bold;
color: white;
text-align: center;
}



.cube__face--front  { transform: rotateY(  0deg) translateZ(100px); }
.cube__face--right  { transform: rotateY( 90deg) translateZ(100px); }
.cube__face--back   { transform: rotateY(180deg) translateZ(100px); }
.cube__face--left   { transform: rotateY(-90deg) translateZ(100px); }

label { margin-right: 10px; }