> 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/theme-blocks/layout/spacer.md).

# Spacer

Adjustable empty space for precise vertical rhythm between blocks.

| Setting        | Description                                                            |
| -------------- | ---------------------------------------------------------------------- |
| Unit           | **Pixel** or **Percent**.                                              |
| Size           | The amount of space (desktop).                                         |
| Show on mobile | Keep the spacer on mobile, with its own unit and size.                 |
| Custom spacing | Enter a value per breakpoint (for example `xs:40px, sm:50px, lg:10%`). |

{% hint style="info" %}
For advanced, per-breakpoint control, see [How to set up custom spacing](/helix/how-to-guides/how-to-set-up-custom-spacing.md).
{% endhint %}