/* Add some basic styling for the buttons */
      .popup-button {
        display: block;
        margin-bottom: 10px;
        padding: 10px 20px;
        font-size: 16px;
      }

      /* Style the popup windows */
      .popup-window {
        position: fixed;
        min-width:330px;
        width: auto;
        height: auto;
        background-color: white;
        border: 1px solid black;
        z-index: 1000;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
        padding: 20px;
        box-sizing: border-box;
        display: none;
      }

      /* Style the backdrop that covers the entire page */
      .backdrop {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 999;
        display: none;
      }