<style>
  /* CSS for circular loading animation */
  .loader {
      border: 8px solid #f3f3f3; /* Light grey */
      border-top: 8px solid #3498db; /* Blue */
      border-radius: 50%;
      width: 50px;
      height: 50px;
      animation: spin 1s linear infinite;
      margin: 20px auto;
  }

  /* Animation for spinner */
  @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
  }

  /* Success Icon */
  .success-icon {
      color: #4CAF50;
      font-size: 50px;
      margin: 20px auto;
  }
</style>