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

.sk-cube-grid .sk-cube {
  width: 33%;
  height: 33%;
  background-color: #00A0E9;
  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);
                  } 
              }
              /*loading*/