body {
    margin: 0;
  }
  .root-loading{
    background: #fff;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    font-size: 14px;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .sk-cube-grid {
    width: 40px;
    height: 40px;
    margin: 100px auto;
  }

  .sk-cube-grid .sk-cube {
    width: 33%;
    height: 33%;
    background-color: #333;
    float: left;
    -webkit-animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out;
    animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out;
  }

  .sk-cube-grid .sk-cube1 {
    -webkit-animation-delay: 0.2s;
    animation-delay: 0.2s;
  }

  .sk-cube-grid .sk-cube2 {
    -webkit-animation-delay: 0.3s;
    animation-delay: 0.3s;
  }

  .sk-cube-grid .sk-cube3 {
    -webkit-animation-delay: 0.4s;
    animation-delay: 0.4s;
  }

  .sk-cube-grid .sk-cube4 {
    -webkit-animation-delay: 0.1s;
    animation-delay: 0.1s;
  }

  .sk-cube-grid .sk-cube5 {
    -webkit-animation-delay: 0.2s;
    animation-delay: 0.2s;
  }

  .sk-cube-grid .sk-cube6 {
    -webkit-animation-delay: 0.3s;
    animation-delay: 0.3s;
  }

  .sk-cube-grid .sk-cube7 {
    -webkit-animation-delay: 0s;
    animation-delay: 0s;
  }

  .sk-cube-grid .sk-cube8 {
    -webkit-animation-delay: 0.1s;
    animation-delay: 0.1s;
  }

  .sk-cube-grid .sk-cube9 {
    -webkit-animation-delay: 0.2s;
    animation-delay: 0.2s;
  }

  @-webkit-keyframes sk-cubeGridScaleDelay {

    0%,
    70%,
    100% {
      -webkit-transform: scale3D(1, 1, 1);
      transform: scale3D(1, 1, 1);
    }

    35% {
      -webkit-transform: scale3D(0, 0, 1);
      transform: scale3D(0, 0, 1);
    }
  }

  @keyframes sk-cubeGridScaleDelay {

    0%,
    70%,
    100% {
      -webkit-transform: scale3D(1, 1, 1);
      transform: scale3D(1, 1, 1);
    }

    35% {
      -webkit-transform: scale3D(0, 0, 1);
      transform: scale3D(0, 0, 1);
    }
  }