Where to edit custom CSS
- Go to the Advanced section.
- Use the Custom CSS field.
Before you add CSS
- First try built-in controls in Theme, Fonts, and Customize colors and sizes ….
- Use custom CSS only for edge cases.
- Keep rules scoped to the widget so website-wide styles are not affected.
Add and save custom CSS
- In Advanced, add your CSS in the Custom CSS field.
- Click the Save button.
- Check the widget preview.
- Open a live page and verify the result.
Validation rules you should know
- Do not add
<style>tags. - Very unsafe or invalid CSS can be removed during sanitization.
Safe example
Common mistakes
- Using very broad selectors that affect too many elements.
- Applying many
!importantrules and making future changes hard. - Changing structural layout classes and breaking mobile rendering.
- Skipping live-page testing after save.
Need help with styling
In Advanced, click the Help me with styling button when it is available.Styling assistance availability depends on your plan and feature access.