v6: accordions - hide default WebKit details marker (old Safari)#42401
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mdo merged 1 commit intoMay 15, 2026
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Suppress the native disclosure marker in WebKit by adding &::-webkit-details-marker { display: none; } to the accordion button styles. This prevents the browser's default triangle from overlapping the custom .accordion-icon and ensures consistent appearance across browsers
Issue discovered using Browserstack.
See comment: https://github.com/orgs/twbs/discussions/42398#discussion-10018925
coliff
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Pull request overview
This PR fixes a Safari/WebKit rendering issue in the v6 accordion by suppressing the native <summary> disclosure marker so it doesn’t overlap Bootstrap’s custom .accordion-icon, improving cross-browser visual consistency (notably on older Safari versions).
Changes:
- Add a WebKit-specific rule to hide the default
details/summarymarker in.accordion-header.
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Curious what version of Safari you're looking at? |
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I posted in the linked discussion. It’s safari 17.3 and older it’s broken in. Screenshot above is 16.5 with the fix. I updated the pr title to say (old safari) :-) |
coliff
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Description / Motivation & Context
Suppress the native disclosure marker in WebKit by adding &::-webkit-details-marker { display: none; } to the accordion button styles. This prevents the browser's default triangle from overlapping the custom .accordion-icon and ensures consistent appearance across browsers
Issue discovered using Browserstack.
See comment: https://github.com/orgs/twbs/discussions/42398#discussion-10018925
Improves design on older Safari versions.
Type of changes
Checklist
npm run lint)Live previews
Screenshot of deploy preview (Safari 16.5):