@keyframes loading-blink {
  0% { opacity: 0.2; }
  50% { opacity: 1; }
  100% { opacity: 0.2; }
}
@keyframes loading-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(359deg);  }
}

#loading {
  animation: loading-blink 2s ease-in-out infinite, loading-spin 12s linear infinite;
  width: 40px;
  height: 40px;
  position: absolute;
  top: 50%;
  left: 50%;
  margin-top: -20px;
  margin-left: -20px;
}