Master DiegoWhy is the custom theme font sans variable not applied correctly? new
This change should have been released by at least an minor level. It is too destructive to be included in a patch release. > GitHub …
· source
The Question List
Covering Jun 8, 2026 to Sep 6, 2026
294 threads read this period, 294 of them new. Threads are counted per distinct account. Bots and pull requests are excluded.
New this week
Why does HMR not work with SolidStart route modules? new
What version of Tailwind CSS are you using?** **What build tool (or framework if it abstracts the build tool) are you using?** [email protected]. …
· Broken HMR with preact, automatic full page reload periodically, similar to #19903
2 more quotes
Hey @RobinMalfait - I updated the issue description and my example repo (https://github.com/neemski/tailwindcss-vite-full-reload-repro) please take a look and let …
· source
Okay quick update from the SolidStart side of things. I analyzed this issue over the past days and learned the following: 1. New modules only …
· source
Why does watch mode fail in Docker PHP projects? new
> You could try using `--poll` as a work-around (#20297). Unreleased but available in `insiders` tag: Thanks for the suggestion! Tried it, but `--poll` doesn't …
· source
2 more quotes
Why does npm ci fail due to missing packages in lock file? new
I think I found the npm related reports: https://github.com/npm/cli/issues/9321 https://github.com/npm/cli/issues/4828 https://github.com/npm/cli/issues/ …
· source
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> @nilsbtr try using a normal `npm install` first such that your `package-lock.json` file is up to date. I tried that. I also tried multiple …
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Why does the @apply directive fail in less files after upgrade? new
What version of Tailwind CSS are you using?** **What build tool (or framework if it abstracts the build tool) are you using?** **What version of …
· Using @reference combined with @apply syntax within a style tag with lang="scss" is invalid
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After upgrading from Tailwind CSS v3 to v4, all `@apply` directives inside `.less` files are broken. The build fails and styles are not applied. - …
· `@apply` No Longer Works in `.less` Files After Upgrading to Tailwind CSS v4
Why does TypeScript export syntax conflict with Deno check? new
tailwindcss/[email protected]` breaks Vite's tsconfig `extends` resolution when running under Deno with `nodeModulesDir: "auto"` and npm imports from `deno.json`. The same reproducti …
· @tailwindcss/vite 4.3.1 breaks Vite tsconfig extends resolution under Deno
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TypeScript 6.0 (shipped in Deno v2.8.3) changed `export =` in ESM context from a warning (TS1203) to a hard error (TS1192). This causes `deno check` …
· types: export = in @tailwindcss/postcss contradicts exports.import in package.json
Why do gradients vanish silently on older Chrome browsers? new
What version of Tailwind CSS are you using?** **What browser are you using?** Chrome/Chromium (v112 & v150) https://play.tailwindcss.com/u7h2BGRLEb **Describe your issue** For …
1 more quote
What version of Tailwind CSS are you using?** v4.3.0 (latest), via `@tailwindcss/postcss` under Next.js 16 / Turbopack. **Describe your issue** The **default** gradient interp …
Why is the group hover selector broken by postcss-selector-parser update? new
What version of Tailwind CSS are you using?** For example: v4.3.0, v4.3.1 **What build tool (or framework if it abstracts the build tool) are you …
· Resolves text-[--spacing(n)] as color instead of font-size
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https://github.com/tailwindlabs/tailwindcss/blob/b01283cc9b66cf830d87cbfe1fbb5ebb8561226a/src/util/formatVariantSelector.js#L252 postcss-selector-parser from 6.1.2 to 6.1.3 , …
Why does the CLI crash when using the @source directive? new
I'm seeing a startup/build hang when using the latest Docus project with Tailwind CSS 4.3.1. The issue occurs on a fresh project generated by …
· Tailwind CSS 4.3.1 hangs in source scanner with @source "../../app.config.ts" used by Docus
1 more quote
What version of Tailwind CSS are you using?** **What build tool (or framework if it abstracts the build tool) are you using?** tailwindcss -i ./css/ …
· v4.3.1 CLI fails with [Error: Invalid handle] when @source present
Why does the standalone CLI crash on macOS 27 with code 9? new
Issue Description** MacOS gotten over the years much more uptight on signing requirements for binaries and currently the MacOS client can't be executed frequently failing …
1 more quote
What version of Tailwind CSS are you using?** **What build tool (or framework if it abstracts the build tool) are you using?** The standalone CLI, …
tailwindcss
Why is the custom theme font sans variable not applied correctly? new
This change should have been released by at least an minor level. It is too destructive to be included in a patch release. > GitHub …
· source
2 more quotes
Why does HMR not work with SolidStart route modules? new
What version of Tailwind CSS are you using?** **What build tool (or framework if it abstracts the build tool) are you using?** [email protected]. …
· Broken HMR with preact, automatic full page reload periodically, similar to #19903
2 more quotes
Hey @RobinMalfait - I updated the issue description and my example repo (https://github.com/neemski/tailwindcss-vite-full-reload-repro) please take a look and let …
· source
Okay quick update from the SolidStart side of things. I analyzed this issue over the past days and learned the following: 1. New modules only …
· source
Why does watch mode fail in Docker PHP projects? new
> You could try using `--poll` as a work-around (#20297). Unreleased but available in `insiders` tag: Thanks for the suggestion! Tried it, but `--poll` doesn't …
· source
2 more quotes
Why does npm ci fail due to missing packages in lock file? new
I think I found the npm related reports: https://github.com/npm/cli/issues/9321 https://github.com/npm/cli/issues/4828 https://github.com/npm/cli/issues/ …
· source
1 more quote
> @nilsbtr try using a normal `npm install` first such that your `package-lock.json` file is up to date. I tried that. I also tried multiple …
· source
Why does the @apply directive fail in less files after upgrade? new
What version of Tailwind CSS are you using?** **What build tool (or framework if it abstracts the build tool) are you using?** **What version of …
· Using @reference combined with @apply syntax within a style tag with lang="scss" is invalid
1 more quote
After upgrading from Tailwind CSS v3 to v4, all `@apply` directives inside `.less` files are broken. The build fails and styles are not applied. - …
· `@apply` No Longer Works in `.less` Files After Upgrading to Tailwind CSS v4
Why does TypeScript export syntax conflict with Deno check? new
tailwindcss/[email protected]` breaks Vite's tsconfig `extends` resolution when running under Deno with `nodeModulesDir: "auto"` and npm imports from `deno.json`. The same reproducti …
· @tailwindcss/vite 4.3.1 breaks Vite tsconfig extends resolution under Deno
1 more quote
TypeScript 6.0 (shipped in Deno v2.8.3) changed `export =` in ESM context from a warning (TS1203) to a hard error (TS1192). This causes `deno check` …
· types: export = in @tailwindcss/postcss contradicts exports.import in package.json
Why do gradients vanish silently on older Chrome browsers? new
What version of Tailwind CSS are you using?** **What browser are you using?** Chrome/Chromium (v112 & v150) https://play.tailwindcss.com/u7h2BGRLEb **Describe your issue** For …
1 more quote
What version of Tailwind CSS are you using?** v4.3.0 (latest), via `@tailwindcss/postcss` under Next.js 16 / Turbopack. **Describe your issue** The **default** gradient interp …
Why is the group hover selector broken by postcss-selector-parser update? new
What version of Tailwind CSS are you using?** For example: v4.3.0, v4.3.1 **What build tool (or framework if it abstracts the build tool) are you …
· Resolves text-[--spacing(n)] as color instead of font-size
1 more quote
https://github.com/tailwindlabs/tailwindcss/blob/b01283cc9b66cf830d87cbfe1fbb5ebb8561226a/src/util/formatVariantSelector.js#L252 postcss-selector-parser from 6.1.2 to 6.1.3 , …
Why does the CLI crash when using the @source directive? new
I'm seeing a startup/build hang when using the latest Docus project with Tailwind CSS 4.3.1. The issue occurs on a fresh project generated by …
· Tailwind CSS 4.3.1 hangs in source scanner with @source "../../app.config.ts" used by Docus
1 more quote
What version of Tailwind CSS are you using?** **What build tool (or framework if it abstracts the build tool) are you using?** tailwindcss -i ./css/ …
· v4.3.1 CLI fails with [Error: Invalid handle] when @source present
Why does the standalone CLI crash on macOS 27 with code 9? new
Issue Description** MacOS gotten over the years much more uptight on signing requirements for binaries and currently the MacOS client can't be executed frequently failing …
1 more quote
What version of Tailwind CSS are you using?** **What build tool (or framework if it abstracts the build tool) are you using?** The standalone CLI, …
Why does text-[--spacing(n)] resolve as color instead of font-size? new
So... took a look at the PR for this #19773 since it's been open since March without review and has gone stale yet is still …
· source
1 more quote
related https://github.com/cosscom/coss/issues/803 From 4.3.1 onward, --spacing(0) (and *-0 spacing utilities) compile to a bare unitless 0 instead of calc( …
· --spacing(0) now resolves to a unitless 0, breaking downstream calc()
Why does the WASM fallback fail on HarmonyOS due to sandbox permission restrictions? new
Yes, running `npm install` was one of the first things we tried. This may ultimately be an npm issue rather than a Tailwind issue, but …
· source
1 more quote
@RobinMalfait Fair questions — I went and actually measured this instead of just asserting "slower". Here's what I found on a real HarmonyOS device (HongMeng …
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Why does hot reload fail for symlinks behind workspaces? new
Testing this a bit further, the same class shows up in the scanner's other consumers. The CLI's native `--watch` is affected with the mechanism inverted: …
· source
1 more quote
What version of Tailwind CSS are you using?** This regressed between v4.3.0 and v4.3.1 and is still reproducible in v4.3.3. **What build tool (or framework …
Why is the :is selector generation incorrect for BEM modifier nesting? new
@RobinMalfait I know that. We run other postcss plugins to ensure browser compatibility etc. Does this seem correct? I would expect it to make the …
· source
1 more quote
What version of Tailwind CSS are you using?** **What build tool (or framework if it abstracts the build tool) are you using?** @tailwindcss/postcss via …
· v4.3.3: &--modifier &__element nesting produces invalid :is() selectors
Why does PHPStorm flag valid dark mode utility classes as redundant? new
What version of Tailwind CSS are you using?** **What build tool (or framework if it abstracts the build tool) are you using?** **What version of …
1 more quote
> What OS are you on where you see the issue? Plus, what is the system language of your OS (especially if you are using …
· source
Why does the scanner emit invalid UTF-8 sequences from source? new
So I reproduced this without the race and it looks like a soundness bug potentially. A .tsx file with one stray continuation byte in a …
· source
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A long-running `next dev` (Turbopack) process in a pnpm monorepo entered a state where Tailwind's generated CSS contained a corrupted copy of one arbitrary- …
Why is the specific release version containing the fix not identified? new
Since 4.3.2 fixes this, the actionable part is probably identifying which change fixed it and whether it warrants a 4.1.x backport — the report is …
· source
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> Beautiful! Yep everything that goes into the main branch is released in the insiders build and eventually makes it into a release (if we …
· source
Why are class names adjacent to brackets not extracted? new
tailwind-tt-repro.zip](https://github.com/user-attachments/files/28919537/tailwind-tt-repro.zip) **What version of Tailwind CSS are you using?** **What build tool (or framewor …
Why is the source path incorrectly resolved to /users folder? new
@RobinMalfait No, there is no /Users/app.config.ts file on my machine. My project is located at: `/Users/fachrihilmi/docus-test` and there is no app.config.ts …
· source
Why does group-hover not work on mobile devices? new
opacity-0 group-hover:opacity-100 remains hidden on mobile view, I have content hover on image - on desktop, group-hover working fine, but when i …
Why are variant classes not generated when using prefix? new
What version of Tailwind CSS are you using?** **What build tool (or framework if it abstracts the build tool) are you using?** @tailwindcss/vite 4.3.1, …
Why does the compiler cache ignore changed input CSS when mtime is unchanged? new
Tailwind version:** 4.3.2 (`tailwindcss` + `@tailwindcss/postcss`, latest at time of filing) **Node:** 22.x · reproduces on macOS and Linux `@tailwindcss/postcss` keeps a per- …
Why does the CLI crash on Android Termux due to missing native build fallback? new
When running the Tailwind v4 CLI (@tailwindcss/[email protected]) inside a **Termux (Android)** environment using Node.js v24, the CLI crashes instantly during tw:dev (watch mode). …
· Tailwind v4 CLI crashes on Android/Termux due to missing native build fallback (`@parcel/watcher`)
Why does the upgrade tool rewrite node_modules files? new
When `@tailwindcss/upgrade` is run from a **subpackage of a pnpm workspace**, it traverses `../../node_modules/…` and rewrites files inside the installed `tailwindcss` package …
· `@tailwindcss/upgrade` rewrites files in `node_modules` when run from a pnpm workspace subpackage
Why does the root source hide nested sources regression? new
What version of Tailwind CSS are you using?** **What build tool (or framework if it abstracts the build tool) are you using?** Vite 8.1.4 with …
· Root-level concrete @source hides nested concrete sources with source(none) in v4.3.2