> For the complete documentation index, see [llms.txt](https://docs.nebotheme.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nebotheme.com/themes/yaffo/header.md).

# Header

Header settings are located in **Appearance** → **Customise** → **Header Settings**.

### Sticky Menu

Activating the **Make the navigation bar sticky** option will make navigation bar visible when scrolling.

By activating the **Enable the smart sticky feature** navigation bar will be revealed when scrolling up and hidden when scrolling down. The feature allows you to save viewport space when viewing your website.

![](/files/-MI_SapfFH2IdFro9vJZ)

### Header Top and Main height

You may change the height of the Header Main  for desktop and mobile versions. You may also adjust the height of the Header Top.


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# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.nebotheme.com/themes/yaffo/header.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
