Loading Spinner

Pulled from http://pivot.mediumra.re/chooser.html

HTML

<div class="spinner">
  <div class="bounce"></div>
  <div class="bounce delay"></div>
</div>

CSS

.spinner {
  position: relative;
  width: 50px;
  height: 50px;
}

.bounce {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #33ccff;
  opacity: 0.6;
  position: absolute;
  top: 0;
  left: 0;
  -webkit-animation: bounce 2s infinite ease-in-out;
  animation: bounce 2s infinite ease-in-out;
}

.delay {
  -webkit-animation-delay: -1s;
  animation-delay: -1s;
}

@keyframes bounce {
  0%, 100% {
    transform: scale(0);
  }
  50% {
    transform: scale(1);
  }
}