e move threshold before dragging starts.</td>
                        </tr>
                        <tr>
                            <td><code>cls-item</code></td>
                            <td>String</td>
                            <td>uk-sortable-item</td>
                            <td>The item class.</td>
                        </tr>
                        <tr>
                            <td><code>cls-placeholder</code></td>
                            <td>String</td>
                            