Fixes #19964 CSS files imported via JS that only use `@variant` (no `@apply`, `theme()`, or utility classes) are silently skipped by the Vite plugin. The `@variant` directive gets passed through raw to the browser, which drops it as an unknown at-rule. **Root cause** — `Features.Variants` is missing from the [feature detection bitmask](https://github.com/tailwindlabs/tailwindcss/blob/v4.2.4/packages/%40tailwindcss-vite/src/index.ts#L526): ```ts // before Features.AtApply | Features.JsPluginCompat | Features.ThemeFunction | Features.Utilities // after Features.AtApply | Features.JsPluginCompat | Features.ThemeFunction | Features.Utilities | Features.Variants ``` **Reproduction** — https://github.com/remorses/tailwind-variant-bug --------- Co-authored-by: Robin Malfait <malfait.robin@gmail.com> |
||
|---|---|---|
| .. | ||
| src | ||
| package.json | ||
| README.md | ||
| tsconfig.json | ||
| tsup.config.ts | ||
A utility-first CSS framework for rapidly building custom user interfaces.
Documentation
For full documentation, visit tailwindcss.com.
Community
For help, discussion about best practices, or feature ideas:
Discuss Tailwind CSS on GitHub
Contributing
If you're interested in contributing to Tailwind CSS, please read our contributing docs before submitting a pull request.
@tailwindcss/vite plugin API
Enabling or disabling Lightning CSS
By default, this plugin detects whether or not the CSS is being built for production by checking the NODE_ENV environment variable. When building for production Lightning CSS will be enabled otherwise it is disabled.
If you want to always enable or disable Lightning CSS the optimize option may be used:
import tailwindcss from '@tailwindcss/vite'
import { defineConfig } from 'vite'
export default defineConfig({
plugins: [
tailwindcss({
// Disable Lightning CSS optimization
optimize: false,
}),
],
})
It's also possible to keep Lightning CSS enabled but disable minification:
import tailwindcss from '@tailwindcss/vite'
import { defineConfig } from 'vite'
export default defineConfig({
plugins: [
tailwindcss({
// Enable Lightning CSS but disable minification
optimize: { minify: false },
}),
],
})