Tailwind CSS v4 styles not applied in Android 10/11

[Faraz1995]

hi
i am using tailwind 4 , vite, tanstack router, i am making a webview loading a url, url looks fine on chrome, but on android device with version 10/11 , the whole style did not load, but when i roll back to tailwind 3, everything is fine!

Expected behavior:
Tailwind v4 should be able to generate compatible CSS when targeting older browsers (e.g., Android 10/11 WebView) using Browserslist.

styles.css
`
@supports not (color: rgb(0 0 0 / 0.5)) {
body {
background: black !important;
}
}

@import 'tailwindcss';

`

package.json

{ "dependencies": { "tailwindcss": "^4.0.6", "@tailwindcss/vite": "^4.0.6", "@tailwindcss/postcss": "^4.1.12", "vite": "^6.1.0" }, "browserslist": [ "defaults", "Android >= 5", "iOS >= 12" ] }

vite.config.js

`import tailwindcss from '@tailwindcss/vite'
import viteReact from '@vitejs/plugin-react'
import { defineConfig } from 'vite'
import autoprefixer from 'autoprefixer'
import postcssPresetEnv from 'postcss-preset-env'
import tanstackRouter from '@tanstack/router-plugin/vite'

export default defineConfig({
css: {
postcss: {
plugins: [
autoprefixer(),
postcssPresetEnv({
stage: 2,
browsers: ['Android >= 8'],
features: {
'custom-properties': true,
},
}),
],
},
},
plugins: [
tanstackRouter({ target: 'react', autoCodeSplitting: true }),
viteReact(),
tailwindcss(),
],
})
`

and .broswerslistrc

defaults Android >= 5 iOS >= 12

postcss.config.mjs
export default { plugins: { '@tailwindcss/postcss': {}, }, }

any idea or solution except rolling back to v3?

[zyycn]

Browser support
Tailwind CSS v4.0 is designed for and tested on modern browsers, and the core functionality of the framework specifically depends on these browser versions:

Chrome 111 (released March 2023)
Safari 16.4 (released March 2023)
Firefox 128 (released July 2024)

[Faraz1995]

so there is no solution except rolling back to v3?
i mean any pre processor or any tool or builing option?

[sonofmagic]

Maybe you need postcss-preset-env to downgrade your CSS to be compatible with Android 10/11
@Faraz1995

[Faraz1995]

do you recommend any specific setup or configuration?