fix: center Mermaid diagrams in markdown view - #6
Merged
Merged
Conversation
Use mid-X preserveAspectRatio and flex-center the render container so diagrams no longer hug the left edge. Co-authored-by: Cursor <cursoragent@cursor.com>
Previous flex centering was a no-op because .mermaid-canvas stayed width 100% while the SVG used a smaller pixel size. Shrink-wrap the canvas, flex-center the SVG, and apply the same to PlantUML/SvgBob. Co-authored-by: Cursor <cursoragent@cursor.com>
kooksee
commented
Sep 19, 2026
kooksee
left a comment
kooksee
left a comment
Collaborator
Author
There was a problem hiding this comment.
Review
LGTM — correctly fixes left-aligned diagrams: shrink-wrap canvas + flex-center SVG (previous width: 100% canvas made flex centering a no-op). Also covers PlantUML/SvgBob.
Checks
- Local: MermaidBlock tests pass (18)
- Bugbot: no findings
- CI
oxfmt --checkfail is pre-existing on master, not caused by this CSS/SVG change
Merging despite CI fmt noise.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
xMidYMinpreserveAspectRatio and flex-center the render containerTest plan
cd frontend && pnpm test src/components/MermaidBlock.test.tsxMade with Cursor