@keyframes react-overlay-loader-spinner {
  to {
    transform: rotate(360deg);
  }
}

.react-overlay-loader-spinner:before {
  content: "";
  box-sizing: border-box;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  margin-top: -30px;
  margin-left: -20px;
  border-radius: 50%;
  border: 3px solid #eee;
  border-top-color: #07d;
  animation: react-overlay-loader-spinner 0.8s linear infinite;
}