Does CRA add prefixes to CSS and with what exact package?

[ParrotStone]

Although it's mentioned in the README file here and in the documentation website that CRA adds prefixes to CSS rules when ejecting, and assuming the package is autoprefixer, then it doesn't show up at all in package.json; I wonder if CRA stopped doing this and the docs weren't updated accordingly.

This question got my attention while setting up tailwindcss and having to install postcss-cli and autoprefixer -- and so I'm wondering if installing autoprefixer is considered unnecessary if CRA does add prefixes by default. I have looked at the package.json of earlier CRA versions that had been ejected and most of them contained the autoprefixer package in there, but the most recent version which I tried to eject didn't contain the package.

[ChristianMurphy]

Autoprefixer is a part of CRA, you can find the documentation here: https://create-react-app.dev/docs/post-processing-css/
It is a transitive dependency (part of postcss-preset-env)

create-react-app/packages/react-scripts/config/webpack.config.js

Line 133 in 5867170

require('postcss-preset-env')({

So it will not show as a direct dependency.

[ParrotStone]

So that means there is no need to install autoprefixer separately during the setup of tailwindcss