te is specified, the groups do not need to have a field <code>content</code>. See section <a href="#Templates">Templates</a> for a detailed explanation.</td>
    </tr>

    <tr>
      <td>height</td>
      <td>number or String</td>
      <td>none</td>
      <td>The height of the timeline in pixels or as a percentage.
        When height is undefined or null, the height of the timeline is automatically
        adjusted to fit the contents.
        It is possible to set a maximum height using option <code>max