Skip to content

fix(fumadocs-ui): prevent sidebar focus ring clipping with overflow-clip #1743

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
yamcodes merged 3 commits into from
Sep 2, 2026
Merged

fix(fumadocs-ui): prevent sidebar focus ring clipping with overflow-clip #1743

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
4c638d0
fix(fumadocs-ui): prevent sidebar focus ring clipping with overflow-clip
yamcodes Sep 2, 2026
938150b
fix(fumadocs-ui): add WebKit fallback for overflow-clip-margin in sid…
yamcodes Sep 2, 2026
195e2d6
fix(fumadocs-ui): scope WebKit fallback nav inset to absolute panels
yamcodes Sep 2, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 7 additions & 0 deletions .changeset/fix-sidebar-tab-ring-overflow.md
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
---
"@arkenv/fumadocs-ui": patch
---

#### Fix keyboard focus ring truncation in sidebar navigation

The drill-in sidebar slide container now uses `overflow: clip` with an expanded clip margin instead of `overflow: hidden`, preventing keyboard focus rings from being clipped along the left and right edges.
15 changes: 14 additions & 1 deletion apps/www/app/docs/docs-chrome.css
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -37,7 +37,20 @@
}

[data-docs-sidebar-slide] {
overflow: hidden;
overflow: clip;
overflow-clip-margin: 0.5rem;
}

@supports not (overflow-clip-margin: 0.5rem) {
[data-docs-sidebar-slide] {
margin-inline: -0.25rem;
padding-inline: 0.25rem;
}

[data-docs-sidebar-slide] > nav.absolute {
width: auto;
inset-inline: 0.25rem;
}
}

/*
Expand Down
25 changes: 23 additions & 2 deletions packages/fumadocs-ui/css/theme.css
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -416,7 +416,7 @@ aside .theme-toggle {
color 150ms,
background-color 150ms;
/* Kill the UA outline (tinted by global `outline-ring/50`) — it is
rectangular and gets clipped by the drill-in `overflow-hidden` pane. */
rectangular and gets clipped by the drill-in slide pane. */
outline: none;
}

Expand Down Expand Up @@ -459,7 +459,28 @@ aside .theme-toggle {
*/
#nd-sidebar [data-docs-sidebar-slide],
#nd-sidebar-mobile [data-docs-sidebar-slide] {
overflow: hidden;
overflow: clip;
overflow-clip-margin: 0.5rem;
Comment thread
yamcodes marked this conversation as resolved.
}

/*
* WebKit / Safari fallback: WebKit supports overflow: clip but does not yet
* support overflow-clip-margin (WebKit bug 236153). Pad the slide container
* and compensate on absolutely-positioned child panels so the 4px focus ring
* paints inside the element padding box without shifting resting or drilled navs.
*/
@supports not (overflow-clip-margin: 0.5rem) {
#nd-sidebar [data-docs-sidebar-slide],
#nd-sidebar-mobile [data-docs-sidebar-slide] {
margin-inline: -0.25rem;
padding-inline: 0.25rem;
}

#nd-sidebar [data-docs-sidebar-slide] > nav.absolute,
#nd-sidebar-mobile [data-docs-sidebar-slide] > nav.absolute {
width: auto;
inset-inline: 0.25rem;
}
}

#nd-sidebar [data-sidebar-mode],
Expand Down
2 changes: 1 addition & 1 deletion packages/fumadocs-ui/src/components/drill-in-sidebar.tsx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -503,7 +503,7 @@ function DrillInTree() {

return (
<div
className="relative overflow-hidden"
className="relative overflow-clip"
data-docs-sidebar-slide=""
style={height != null ? { height } : undefined}
>
Expand Down
Loading