Bug
Custom Cascading Style Sheets (CSS) are not applied in Basic (Media Map) ArcGIS Instant App's headers.
| Bug ID Number | BUG-000181327 |
|---|---|
| Submitted | December 1, 2025 |
| Last Modified | December 4, 2025 |
| Applies to | ArcGIS Instant Apps |
| Version found | October 2025 |
| Operating System | Windows OS |
| Operating System Version | 11.0 64 bit |
| Status | In Product Plan |
Additional Information
Support for custom CSS can change per release, as noted in the tooltip associated with the button.Workaround
To add some margin or padding to the header, add custom CSS applied to the Calcite Shell to change the text color and apply a top border.
Steps to Reproduce
Bug ID: BUG-000181327
Software:
- ArcGIS Instant Apps
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