.cert-loader {
    border: 4px solid #0069d9;  /* Light grey */
    border-top: 4px solid #ffffff; /* Blue */
    border-right: 4px solid #ffffff; /* Blue */
    border-radius: 50%;
    width: 15px;
    height: 15px;
    display: inline-block;
    margin-right: 3px;
    animation: spin 0.4s linear infinite;
  }

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