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Narrower sidebar

Slims the left sidebar to reclaim space for page content without hiding navigation entirely.

Code to copy

.notion-sidebar { width: 200px !important; min-width: 200px !important; }
.notion-sidebar-container { width: 200px !important; }
.notion-frame { left: 200px !important; }

How to use this example

1. Copy the code with the button above.
2. Install JustZix (2 minutes) and open the extension on the target page.
3. Add a new rule matching that page.
4. Paste the code into the rule's CSS panel and save — the effect appears instantly.