> For the complete documentation index, see [llms.txt](https://docs10.xenioo.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs10.xenioo.com/actions-and-operations/forms/layout/custom-css.md).

# Custom CSS

This operation will add a custom style sheet content to the current [Form Container](/actions-and-operations/forms/form-container.md) action. 

![](/files/-LtdadjQx2G5NbHce6jn)

### Settings

The action uses the following settings:

| Setting | Description                    | [Parsed](/actions-and-operations/dynamic-parsing.md) |
| ------- | ------------------------------ | ---------------------------------------------------- |
| Content | The custom style sheet content | :white\_check\_mark:                                 |

### Remarks

The style classes will be automatically rendered inside \<style> and \</style> tags that are already part of the page. Do not use \<style> tags inside this text control as this could potentially disrupt the page layout.

### Trigger

This action does not trigger any event.&#x20;

### Variables

This action does not return any variable.

### Availability

Channel specific availability follows the table below:

| Channel          | Availability       |
| ---------------- | ------------------ |
| Facebook         | Fully Available.   |
| WhatsApp         | Fully Available.   |
| Telegram         | Fully Available.   |
| Web              | Fully Available.   |
| Alexa            | **Not Available.** |
| Google Assistant | **Not Available.** |
| Slack            | Fully Available.   |
| API              | Fully Available.   |

This action can be used only inside interactions and not as child of other actions. This action is available only to [Premium Accounts](/basic-concepts/your-account/the-free-plan.md).