.spinner {
  height: 18px;
  display: inline-block;
}

.spinner > div {
  width: 18px;
  height: 18px;
  background-color: #000;
  vertical-align: middle;
  border-radius: 100%;
  display: inline-block;
  animation: bouncedelay 1.5s infinite ease-in-out;
  animation-fill-mode: both;
}

.spinner .spin1 { animation-delay: -.46s }
.spinner .spin2 { animation-delay: -.24s }

@keyframes bouncedelay {
  0%, 80%, 100% {
    transform: scale(0.5);
  } 40% {
    transform: scale(0.9);
  }
}