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feat: add CSS Layer support to PageLayout#7955

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css-layers/04-layout-foundations-afrom
css-layers/05-page-layout
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feat: add CSS Layer support to PageLayout#7955
joshblack wants to merge 2 commits into
css-layers/04-layout-foundations-afrom
css-layers/05-page-layout

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@joshblack

@joshblack joshblack commented Jun 9, 2026 •
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Part of https://github.com/github/primer/issues/6275

Migrates PageLayout styles into named Primer component CSS layers.

Changelog

New

  • Adds CSS layer coverage for PageLayout.

Changed

  • Wraps PageLayout CSS module styles in named @layer primer.components.* layers.

Removed

  • None

Rollout strategy

  • Patch release
  • Minor release
  • Major release; if selected, include a written rollout or migration plan
  • None; if selected, include a brief description as to why

Testing & Reviewing

  • Run cd packages/react && npx vitest run src/__tests__/css-layers.test.ts --config vitest.config.mts.
  • Review this PR as part of the CSS layers stack; this entry covers PageLayout.

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changeset-bot Bot commented Jun 9, 2026 •
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🦋 Changeset detected

Latest commit: 29db7bc

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package
Name Type
@primer/react Patch

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@github-actions github-actions Bot added staff Author is a staff member integration-tests: recommended This change needs to be tested for breaking changes. See https://arc.net/l/quote/tdmpakpm labels Jun 9, 2026
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github-actions Bot commented Jun 9, 2026

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⚠️ Action required

👋 Hi, this pull request contains changes to the source code that github/github-ui depends on. If you are GitHub staff, test these changes with github/github-ui using the integration workflow. Check the integration testing docs for step-by-step instructions. Or, apply the integration-tests: skipped manually label to skip these checks.

To publish a canary release for integration testing, apply the Canary Release label to this PR.

@joshblack joshblack changed the title feat: add CSS Layers to 05-page-layout feat: add CSS Layer support to PageLayout Jun 9, 2026
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🤖 Lint issues have been automatically fixed and committed to this PR.

@joshblack joshblack force-pushed the css-layers/04-layout-foundations-a branch from c081170 to 7b76a23 Compare June 9, 2026 20:14
@joshblack joshblack force-pushed the css-layers/05-page-layout branch from 56e76ad to 4c00529 Compare June 9, 2026 20:14
@github-actions github-actions Bot temporarily deployed to storybook-preview-7955 June 9, 2026 20:19 Inactive
@primer

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🤖 Lint issues have been automatically fixed and committed to this PR.

@joshblack joshblack force-pushed the css-layers/04-layout-foundations-a branch from 7b76a23 to 1f44908 Compare June 9, 2026 20:24
@joshblack joshblack force-pushed the css-layers/05-page-layout branch from 4c00529 to e936376 Compare June 9, 2026 20:24
@github-actions github-actions Bot requested a deployment to storybook-preview-7955 June 9, 2026 20:27 Abandoned
@joshblack joshblack force-pushed the css-layers/04-layout-foundations-a branch from 1f44908 to f6ee46d Compare June 9, 2026 20:27
@joshblack joshblack force-pushed the css-layers/05-page-layout branch from e936376 to c25bf0e Compare June 9, 2026 20:27
joshblack and others added 2 commits June 9, 2026 15:28
@joshblack
feat: add CSS Layers to 05-page-layout
9749895 
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@joshblack
chore: standardize CSS layer changeset wording
29db7bc 
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@joshblack joshblack force-pushed the css-layers/04-layout-foundations-a branch from f6ee46d to 7c570b2 Compare June 9, 2026 20:29
@joshblack joshblack force-pushed the css-layers/05-page-layout branch from c25bf0e to 29db7bc Compare June 9, 2026 20:29
@github-actions github-actions Bot requested a deployment to storybook-preview-7955 June 9, 2026 20:31 Abandoned
@primer

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🤖 Lint issues have been automatically fixed and committed to this PR.

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