.so-spin-wave {
  margin: auto;
  font-size: 10px;
  text-align: center;
  white-space: nowrap;
}
@-webkit-keyframes so-spin-wave-scale {
  0%,
  40%,
  100% {
    -webkit-transform: scale3d(1, 0.4, 1);
            transform: scale3d(1, 0.4, 1);
  }
  20% {
    -webkit-transform: scale3d(1, 1, 1);
            transform: scale3d(1, 1, 1);
  }
}
@keyframes so-spin-wave-scale {
  0%,
  40%,
  100% {
    -webkit-transform: scale3d(1, 0.4, 1);
            transform: scale3d(1, 0.4, 1);
  }
  20% {
    -webkit-transform: scale3d(1, 1, 1);
            transform: scale3d(1, 1, 1);
  }
}
.so-spin-wave-item {
  display: inline-block;
  height: 100%;
  margin-right: 2px;
  -webkit-animation: so-spin-wave-scale 1.2s infinite ease-in-out;
          animation: so-spin-wave-scale 1.2s infinite ease-in-out;
}
.so-spin-wave-item:last-child {
  margin-right: 0;
}
.so-spin-wave .so-spin-wave-item:nth-child(2) {
  -webkit-animation-delay: -1.1s;
          animation-delay: -1.1s;
}
.so-spin-wave .so-spin-wave-item:nth-child(3) {
  -webkit-animation-delay: -1s;
          animation-delay: -1s;
}
.so-spin-wave .so-spin-wave-item:nth-child(4) {
  -webkit-animation-delay: -0.9s;
          animation-delay: -0.9s;
}
.so-spin-wave .so-spin-wave-item:nth-child(5) {
  -webkit-animation-delay: -0.8s;
          animation-delay: -0.8s;
}