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UnderlineNav: Prevent borders from triggering overflow menu #8340

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Merged
liuliu-dev merged 2 commits into from
Aug 31, 2026
+6 −1
Merged

UnderlineNav: Prevent borders from triggering overflow menu #8340

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744f5c7
Prevent UnderlineNav borders from triggering overflow
ShiyunXu Aug 25, 2026
facbfe4
Merge branch 'main' into sx/underline-nav-overflow-box-model
liuliu-dev Aug 31, 2026
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5 changes: 5 additions & 0 deletions .changeset/underline-wrapper-force-no-border.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
'@primer/react': patch
---

UnderlineNav: Prevent external borders from incorrectly triggering the overflow menu
2 changes: 1 addition & 1 deletion packages/react/src/internal/components/UnderlineTabbedInterface.module.css
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Expand Up @@ -25,7 +25,7 @@

/* Pin the vertical box model so external border/padding overrides can't change the height budget and incorrectly trigger the overflow "more" menu */
box-sizing: border-box;
border-block: 0 !important;
border: 0 !important;
padding-block: var(--base-size-8) 0 !important;

.UnderlineItemList {
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