#wrap
 -3.times do
  .cube
   .front
    %h1{"data-splitting" => "chars"}
     OKBO
   .left
    %h1{"data-splitting" => "chars"}
     OMER
   .right
    %h1{"data-splitting" => "chars"}
     OMER
   .back
    %h1{"data-splitting" => "chars"}
     OBKO

body{
  display:flex;
  justify-content:center;
  align-items:center;
  width:100vw;
  height:100vh;
  perspective:6000px;
  background:#000;
  overflow:hidden;
  #wrap{
    zoom:0.9;
    width:350px;
    height:350px;
    position:relative;
    transform-style:preserve-3d;
    animation:updown 5s ease-in-out infinite alternate;
    transform-origin:50% 100%;
    &:before{
      content:'';
      position:absolute;
      width:400%;
      height:400%;
      left:-150%;
      top:-150%;
      background:radial-gradient(ellipse at center, #000 0%, transparent 90%);
      backface-visibility:hidden;
      animation:fade 5s ease-in-out infinite alternate;
      animation-delay:0s;
      border-radius:100%;
      @keyframes fade{
        0%{
          transform:scale(0);
          opacity:0;
        }
        75%{
          transform:scale(0.25);
          opacity:1;
        }
        97.5%{
          transform:scale(1);
        }
        100%{
          transform:scale(1);
        }
      }
    }
    @keyframes updown{
      0%{
        transform:scale(0.75) translateY(-15%) rotateX(60deg)  scaleY(1.75);
        transform-origin:50% 75%;
      }
      10%{
        transform:scale(0.75) translateY(-15%) rotateX(60deg) scaleY(1.75);
        transform-origin:50% 75%;
      }
      90%{
        transform:scale(0.75) rotateX(0deg) translateY(12.5%);
        transform-origin:50% 0%;
      }
      100%{
        transform:scale(0.75) rotateX(0deg) translateY(12.5%);
        transform-origin:50% 0%;
      }
    }
    .cube{
      position:absolute;
      width:100%;
      height:33.3333%;
      left:0;
      transform-style:preserve-3d;
      transform:rotateX(0deg) rotateY(315deg);
      animation:spinback 5s ease-in-out infinite;
      @for $i from 1 through 3{
        &:nth-of-type(even){
          animation-direction:reverse;
          *{
            animation-direction:reverse;
            &:before{
              animation-direction:reverse !important;
            }
          }
        }
        &:nth-of-type(#{$i}){
          top:#{($i - 1) * 30%};
        }
      }
      @keyframes spinback{
        10%{
          transform:rotateX(0deg) rotateY(315deg);
        }
        90%{
          transform:rotateX(0deg) rotateY(-45deg);
        }
        100%{
          transform:rotateX(0deg) rotateY(-45deg);
        }
      }
      @keyframes spinback2{
        10%{
          transform:rotateX(0deg) rotateY(-315deg);
        }
        90%{
          transform:rotateX(0deg) rotateY(45deg);
        }
        100%{
          transform:rotateX(0deg) rotateY(45deg);
        }
      }
      div{
        position:absolute;
        width:100%;
        height:100%;
        top:0;
        left:0;
        transform-style:preserve-3d;
        &.back{
          &:before{
            transform:translateZ(-50px);
          }
        }
        *{
          transform-style:preserve-3d;
        }
        h1{
          width:calc(100% - 10px);
          left:5px;
          position:relative;
          margin:0;
          font-size:60px;
          font-weight:900;
          font-family:Futura, sans-serif;
          height:100%;
          display:flex;
          justify-content:center;
          margin:0;
          .word{
            position:relative;
            width:100%;
            .char{
              display:flex;
              justify-content:center;
              align-items:center;
              position:absolute;
              width:25%;
              height:100%;
              color:transparent;
              &:before{
                content:attr(data-char);
                color:#fff;
                font-weight:900;
                -webkit-text-stroke:5px #000;
                position:absolute;
                transform:rotateX(0deg) rotateY(-315deg);
              animation:spinback2 5s ease-in-out infinite;
                text-shadow:0 0 40px #000;
              }
              @for $i from 1 through 4{
                &:nth-of-type(#{$i}){
                  left:calc((#{$i - 1}) * 25%);
                }
              }
            }
          }
        }
        &.front{
          transform:translateZ(175px);
          h1{
            .word{
              .char{
                &:nth-of-type(-n + 2){
                  &:before{
                    color:#000;
                    -webkit-text-stroke:3px #fff;
                  }
                }
              }
            }
          }
        }
        &.back{
          transform:translateZ(-175px) rotateY(0deg) rotateX(0deg);
          h1{
            .word{
              .char{
                transform:rotateY(360deg);
                &:nth-of-type(n + 3){
                  &:before{
                    color:#000;
                    -webkit-text-stroke:3px #fff;
                  }
                }
                &:before{
                  animation:spinback3 5s ease-in-out infinite;
                  transform:rotateX(0deg) rotateY(-315deg);
                  @keyframes spinback3{
                    10%{
                      transform:rotateX(0deg) rotateY(-315deg);
                    }
                    90%{
                      transform:rotateX(0deg) rotateY(45deg);
                    }
                    100%{
                      transform:rotateX(0deg) rotateY(45deg);
                    }
                  }
                }
              }
            }
          }
        }
        &.left{
          transform-origin:left;
          left:100%;
          transform:translateZ(175px) rotateY(90deg);
          h1{
            .word{
              .char{
                transform:rotateY(-90deg);
              }
            }
          }
        }
        &.right{
          transform-origin:right;
          left:-100%;
          transform:translateZ(175px) rotateY(-90deg);
          h1{
            .word{
              .char{
                transform:rotateY(90deg);
                &:before{
                  animation:spinback2 5s ease-in-out infinite;
                }
              }
            }
          }
        }
      }
    }
  }
}

Splitting();