/*========================================================
        DARK LAYOUT
=========================================================*/

@-webkit-keyframes square-spin {
  25% {
    transform: perspective(100px) rotateX(180deg) rotateY(0);
  }

  50% {
    transform: perspective(100px) rotateX(180deg) rotateY(180deg);
  }

  75% {
    transform: perspective(100px) rotateX(0) rotateY(180deg);
  }

  100% {
    transform: perspective(100px) rotateX(0) rotateY(0);
  }
}

@keyframes square-spin {
  25% {
    transform: perspective(100px) rotateX(180deg) rotateY(0);
  }

  50% {
    transform: perspective(100px) rotateX(180deg) rotateY(180deg);
  }

  75% {
    transform: perspective(100px) rotateX(0) rotateY(180deg);
  }

  100% {
    transform: perspective(100px) rotateX(0) rotateY(0);
  }
}

.square-spin > div {
  -webkit-animation-fill-mode: both;
          animation-fill-mode: both;
  width: 50px;
  height: 50px;
  background: #b8c2cc;
  -webkit-animation: square-spin 3s 0s cubic-bezier(0.09, 0.57, 0.49, 0.9) infinite;
          animation: square-spin 3s 0s cubic-bezier(0.09, 0.57, 0.49, 0.9) infinite;
}