l applied after completion if a delay is specified.</td>
                </tr>
                <tr>
                  <td><code>progress_class</code></td>
                  <td><span class="label label-primary">string</span></td>
                  <td><code>inprogress</code></td>
                  <td>The class that will be applied to the bar whenever a promise is in progress.</td>
                </tr>
                <tr>
                  <td><code>success_class</code></td>
                  <td><span cl