Sanskar Shukla
150c326369
fixes: #19571 ## What's happening BlockNote's `.bn-panel` (the Upload/Embed popup for images, videos, audio) has a hardcoded `width: 500px` in the upstream `blocknoteStyles.css`. When you open it inside the side panel (~350px wide), it overflows past the container's `overflow: hidden` and gets clipped. ## Why percentage-based fixes don't work here I initially tried `max-width: 100%` on `.bn-panel` but it doesn't work the panel sits inside a Floating UI popover that's absolutely positioned with no explicit width. Its width comes from its content (the 500px panel), so `max-width: 100%` just resolves to that same 500px. It's a circular reference. ## The fix ```css & .bn-mantine { container-type: inline-size; } & .bn-mantine .bn-panel { width: min(500px, 100cqi); box-sizing: border-box; } ``` container-type: inline-size on .bn-mantine lets us reference the editor's actual width using cqi units. min(500px, 100cqi) keeps the panel at 500px in wide containers (main note view) and shrinks it to fit in narrow ones (side panel). I scoped container-type to .bn-mantine (BlockNote's own root wrapper) rather than the outer StyledEditor div, so the containment context stays within BlockNote's own tree. #Before <img width="373" height="530" alt="image" src="https://github.com/user-attachments/assets/63fb407c-79d1-4faa-afb4-15a98fe4ba22" /> #After <img width="332" height="597" alt="image" src="https://github.com/user-attachments/assets/f7e91c28-ad35-44a5-9450-0b6d52714977" /> <img width="599" height="579" alt="image" src="https://github.com/user-attachments/assets/20fd457b-2d06-4799-9164-f993ef37d833" /> Tested Side panel: panel fits correctly, matches "Add image" button width Full-width editor: panel stays at 500px Slash menu, formatting toolbar, drag handles: all unaffected --------- Co-authored-by: Félix Malfait <felix.malfait@gmail.com>
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Customize your objects and fields
Create and manage permissions with custom roles
Automate workflow with triggers and actions
Emails, calendar events, files, and more
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