.spinner {
  display: inline-block;
  width: 80px;
  height: 80px;
  border: 3px solid rgba(0, 0, 0, 0.1);
  border-left-color: #09f;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

#spinner-container {
  display: none;
  text-align: center;
  margin: 20px;
}