style.scss

/*initialize*/
body,div,ul,li{
  margin: 0;
  padding: 0;
}
body{
  background: #ccc;
}
li{
  list-style: none;
}
@mixin transform ($dome) {
  transform: $dome;
  -ms-transform: $dome;   /* IE 9 */
  -webkit-transform: $dome; /* Safari and Chrome */
  -o-transform: $dome;    /* Opera */
  -moz-transform: $dome;    /* Firefox */
}
#touzi{
  position: relative;
  margin: 100px auto 0;
  width: 200px;
  height: 200px;
  -webkit-transform-style:preserve-3d;
  @include transform (rotateX(0deg) rotateY(45deg) rotateZ(0deg));
  li{
    position: absolute;
    background: url(touzi.jpg) no-repeat;
    width: 200px;
    height: 200px;
    left: 0;
    top: 0;
  }
  li:nth-child(1){//1
    background-position:-216px -426px;
    @include transform (translateZ(-100px))
  }
  li:nth-child(2){//2
    background-position:-216px -216px;
    @include transform (translateX(-100px) rotateY(90deg))
  }
  li:nth-child(3){//3
    background-position:-4px -426px;
    @include transform (translateY(100px) rotateX(90deg))
  }
  li:nth-child(4){//4
    background-position:-426px -216px;
    @include transform (translateY(-100px) rotateX(90deg))
  }
  li:nth-child(5){//5
    background-position:-634px -216px;
    @include transform (translateX(100px) rotateY(90deg))
  }
  li:nth-child(6){//6
    background-position:-216px -7px;
    @include transform (translateZ(100px))
  }
}
#key{
  position: relative;
  margin: 0 auto;
  width: 300px;
  height: 150px;
  input{
    position: absolute;
    width: 50px;
    height: 30px;
  }
  input:nth-child(1){
      top: 0;
      left: 125px;
    }
  input:nth-child(2){
    bottom: 0;
    left: 125px;
  }
  input:nth-child(3){
    top: 60px;
    left: 0;
  }
  input:nth-child(4){
    top: 60px;
    right: 0;
  }
}