> ## Documentation Index
> Fetch the complete documentation index at: https://fillout.com/help/llms.txt
> Use this file to discover all available pages before exploring further.

# Use Fillout advanced designer

> Add a custom CSS, edit the look of your buttons, and use more styling options to customize your form and enhance your company or organization's branding.

## How to make advanced edits

Click `Theme` to open the **Form designer**. Then, scroll down on the left-hand panel, and click `Advanced designer`.

<img src="https://mintcdn.com/fillout-005a867b/k0MHhpNnunFK0wn4/images/Screenshot2025-12-01at3.58.22PM.png?fit=max&auto=format&n=k0MHhpNnunFK0wn4&q=85&s=c7bf61811b1e0a5541c01a41d35929f4" alt="Screenshot 2025-12-01 at 3.58.22 PM.png" width="2570" height="1441" data-path="images/Screenshot2025-12-01at3.58.22PM.png" />

<Info>
  This feature is available on the **Starter** plan and above (except for custom CSS, which is available for Pro users and above). Learn more about our pricing plans and advanced features [**here**](https://www.fillout.com/pricing).
</Info>

Our **Advanced designer** lets users:

* [Add custom CSS](/custom-css)
* Edit the input style
* Change the shape of buttons
* Choose a different animation

<img src="https://mintcdn.com/fillout-005a867b/k0MHhpNnunFK0wn4/images/Screenshot2025-12-01at3.59.05PM.png?fit=max&auto=format&n=k0MHhpNnunFK0wn4&q=85&s=6dbf6c7e5aab63bbc465d60f9e7bec98" alt="Screenshot 2025-12-01 at 3.59.05 PM.png" width="2572" height="1441" data-path="images/Screenshot2025-12-01at3.59.05PM.png" />

You can also:

* Put the back button beside the next button
* Change the text alignment
* Edit the input width
* Change the padding or spacing between fields

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