> For the complete documentation index, see [llms.txt](https://modutheme.gitbook.io/helix/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://modutheme.gitbook.io/helix/header-group/header.md).

# Header

The desktop header that appears at the top of every page. Add the blocks you need, arrange them into rows and columns, and set how the header behaves on scroll.

{% content-ref url="/pages/I7yFBKDGsgDwTemtNWmW" %}
[Header Structure](/helix/header-group/header/header-structure.md)
{% endcontent-ref %}

{% content-ref url="/pages/wy4VEKrkJ2jEy3MFHIHi" %}
[Header Styling](/helix/header-group/header/header-styling.md)
{% endcontent-ref %}

{% content-ref url="/pages/jeYBeEWQJI5TsFlucazF" %}
[Available Blocks](/helix/header-group/header/available-blocks.md)
{% endcontent-ref %}

{% content-ref url="/pages/DZFNcHJULwuwGuBLfWwa" %}
[Sticky Header](/helix/header-group/header/sticky-header.md)
{% endcontent-ref %}

{% content-ref url="/pages/xA5Md81MaXg2cvOApcbe" %}
[Transparent Header](/helix/header-group/header/transparent-header.md)
{% endcontent-ref %}

{% content-ref url="/pages/3jOIvXInvpTWa4XrP5Zb" %}
[Mega menu](/helix/header-group/header/mega-menu.md)
{% endcontent-ref %}