.spinner-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

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

.spinner {
  left: 65%;
  top: 50%;
  z-index: 50;
  position: absolute;
  border: 16px solid #f3f3f3;
  border-top: 16px solid #3498db;
  border-radius: 50%;
  width: 500px;
  height: 500px;
  width: 130px;
  height: 130px;
  animation: spin 2s linear infinite;
}
