   font-size: 36px;
      margin: 0 0 16px;
    }
    .loading-image {
      margin: 0 0 16px;
    }
    #error-message, #error-stack {
      font-family: monospace;
      max-width: 600px;
      white-space: pre-wrap;
      user-select: text;
      -webkit-user-select: text;
    }
    #error-stack {
      text-align: left;
      max-height: 200px;
      overflow: auto;
    }
    .control-button {
      width: 2rem;
      height: 2rem;
      padding: 0.375rem;
      border-radius: 0.25rem;
      margin-top: