Bump Tailwind CSS

[code-infra-renovate]

This PR contains the following updates:

Package	Change	Age	Confidence	Type	Update
@tailwindcss/postcss (source)	^4.2.4 → ^4.3.2			dependencies	minor
@tailwindcss/vite (source)	^4.2.4 → 4.3.0			devDependencies	pin
tailwindcss (source)	4.2.4 → 4.3.2			devDependencies	minor

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⚠️ Renovate's pinning functionality does not currently wire in the release age for a package, so the Minimum Release Age checks can apply. You will need to manually validate the Minimum Release Age for these package(s).

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Release Notes

tailwindlabs/tailwindcss (@​tailwindcss/postcss)

v4.3.2

Compare Source

Fixed

• Support bare spacing values for auto-rows-* and auto-cols-* utilities (e.g. auto-rows-12 and auto-cols-16) (#​20229)
• Prevent @tailwindcss/cli in --watch mode from crashing on Windows when @source points to a directory that doesn't exist (#​20242)
• Prevent @tailwindcss/vite from crashing in Deno v2.8.x when context.parentURL is not a valid URL (#​20245)
• Ensure @tailwindcss/cli in --watch mode rebuilds when the input CSS file changes in an ignored directory (#​20246)
• Allow @variant rules used in addBase(…) to use custom variants defined later (#​20247)
• Prevent @tailwindcss/vite from crashing during HMR when scanned files or directories are deleted (#​20259)
• Generate font-size instead of color declarations for text-[--spacing(…)] (#​20260)
• Prevent @source patterns from scanning unrelated sibling files and folders (#​20263)
• Extract class candidates adjacent to Template Toolkit delimiters like %]…[% in .tt, .tt2, and .tx files (#​20269)
• Extract class candidates from conditional Maud syntax like p.text-black[condition] (#​20269)
• Prevent @position-try rules from triggering unknown at-rule warnings when optimizing CSS (#​20277)
• Support class suggestions for named opacity modifiers from --opacity theme values (#​20287)
• Prevent type errors in @tailwindcss/postcss when used with newer PostCSS patch releases (#​20289)

v4.3.1

Compare Source

Added

• Add --silent option to suppress output in @tailwindcss/cli (#​20100)

Fixed

• Remove deprecation warnings by using Module#registerHooks instead of Module#register on Node 26+ (#​20028)
• Canonicalization: don't crash when plugin utilities throw for unsupported values (#​20052)
• Allow @apply to be used with CSS mixins (#​19427)
• Ensure not-* correctly negates @container queries, including style(…) queries (#​20059)
• Ensure drop-shadow-* color utilities work with custom shadow values containing calc(…) (#​20080)
• Fix 'Sourcemap is likely to be incorrect' warnings when using @tailwindcss/vite (#​20103)
• Ensure @tailwindcss/webpack can be installed in Rspack projects without requiring webpack as a peer dependency (#​20027)
• Canonicalization: don't suggest invalid calc(…) expressions (e.g. px-[calc(1rem+0px)] → px-[calc(1rem+0)]) (#​20127)
• Canonicalization: avoid suggesting large spacing-scale values for arbitrary lengths (e.g. left-[99999px] → left-[99999px], not left-24999.75) (#​20130)
• Ensure @tailwindcss/cli in --watch mode recovers when a tracked dependency is deleted and restored (#​20137)
• Ensure standalone @tailwindcss/cli binaries are ignored when scanning for class candidates (#​20139)
• Ensure class candidates are extracted from Twig addClass(…) and removeClass(…) calls (#​20198)
• Don't crash in the Ruby or Vue preprocessors when scanning files containing invalid UTF-8 bytes (#​19588)
• Allow @variant to be used inside addBase (#​19480)
• Ensure @source globs with symlinks are preserved (#​20203)
• Ensure later @source rules can re-include files excluded by earlier @source not rules (#​20203)
• Upgrade: don't migrate empty class rules to invalid @utility rules (#​20205)
• Ensure transitions between inset-shadow-none and other inset shadows work correctly (#​20208)
• Ensure explicitly referenced @source directories are scanned even when ignored by git (#​20214)
• Ensure @source globs ending in **/* preserve dynamic path segments to avoid scanning too many files (#​20217)
• Canonicalization: don't fold calc(…) divisions when the result would require high precision (e.g. w-[calc(100%/3.5)] → w-[calc(100%/3.5)], not w-[28.571428571428573%]) (#​20221)
• Serve ESM type declarations to ESM importers of @tailwindcss/postcss (#​20228)

Changed

• Generate 0 instead of calc(var(--spacing) * 0) for spacing utilities like m-0 and left-0 (#​20196)
• Generate var(--spacing) instead of calc(var(--spacing) * 1) for spacing utilities like m-1 and left-1 (#​20196)

v4.3.0

Compare Source

Added

• Add @container-size utility (#​18901)
• Add scrollbar-{auto,thin,none} utilities for scrollbar-width, and scrollbar-thumb-* / scrollbar-track-* color utilities for scrollbar-color (#​19981, #​20019)
• Add scrollbar-gutter-* utilities (#​20018)
• Add zoom-* utilities (#​20020)
• Add tab-* utilities (#​20022)
• Allow using @variant with stacked variants (e.g. @variant hover:focus { … }) (#​19996)
• Allow using @variant with compound variants (e.g. @variant hover, focus { … }) (#​19996)
• Support --default(…) in --value(…) and --modifier(…) for functional @utility definitions (#​19989)

Fixed

• Ensure @plugin resolves package JavaScript entries instead of browser CSS entries when using @tailwindcss/vite (#​19949)
• Fix relative @import and @plugin paths resolving from the wrong directory when using @tailwindcss/vite (#​19965)
• Ensure CSS files containing @variant are processed by @tailwindcss/vite (#​19966)
• Resolve imports relative to base when result.opts.from is not provided when using @tailwindcss/postcss (#​19980)
• Canonicalization: preserve significant _ whitespace in arbitrary values (#​19986)
• Canonicalization: add parentheses when removing whitespace from arbitrary values would hurt readability (e.g. w-[calc(100%---spacing(60))] → w-[calc(100%-(--spacing(60)))]) (#​19986)
• Canonicalization: preserve the original unit in arbitrary values instead of normalizing to base units (e.g. -mt-[20in] → mt-[-20in], not mt-[-1920px]) (#​19988)
• Canonicalization: migrate arbitrary :has() variants from [&:has(…)] to has-[…] (#​19991)
• Upgrade: don’t migrate inline style attributes (e.g. style="flex-grow: 1" → style="flex-grow: 1", not style="grow: 1") (#​19918)
• Allow multiple @utility definitions with the same name but different value types (#​19777)
• Export missing PluginWithConfig type from tailwindcss/plugin to fix errors when inferring plugin config types (#​19707)
• Ensure start and end legacy utilities without values do not generate CSS (#​20003)
• Ensure --value(…) is required in functional @utility definitions (#​20005)
• Canonicalization: preserve required whitespace around operators in negated arbitrary values (e.g. -left-[(var(--a)+var(--b))]) (#​20011)

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Bundle	Parsed size	Gzip size
@mui/material	0B(0.00%)	0B(0.00%)
@mui/lab	0B(0.00%)	0B(0.00%)
@mui/private-theming	0B(0.00%)	0B(0.00%)
@mui/system	0B(0.00%)	0B(0.00%)
@mui/utils	0B(0.00%)	0B(0.00%)

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