# Header

Use the **Header** block to build the sidebar and group content into categories or sections.

<figure><img src="https://2636770384-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FsD7BEEDU3B7WiEJlN0F7%2Fuploads%2FbpjnEuB2mevNrF1Zc0ZY%2Fimage.png?alt=media&#x26;token=faa71ccf-5341-4e6d-959f-057453493c28" alt="An example of a sidebar section with a highlight over its header block"><figcaption></figcaption></figure>

<table><thead><tr><th width="116.673583984375">Settings</th><th width="139.14324951171875" align="center">Type</th><th>Description</th></tr></thead><tbody><tr><td>Heading</td><td align="center"><code>text</code></td><td>Title for the sidebar group.</td></tr></tbody></table>
