.spinner {
  border: 16px solid #f3f3f3; /* Light grey */
  border-top: 16px solid #F8C700; /* Blue */
  border-radius: 50%;
  width: 0.6em;
  height: 0.6em;
  animation: spin 2s linear infinite;
  display:inline-block;
  vertical-align:middle;
  animation-play-state: paused;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}