Is it possible to integrated tailwind ?

I tried, but I have some issue with postcss

CssSyntaxError: [postcss] /index.html?html-proxy&index=0.css:759:1: Unknown word

I tried :

tailwindcss -i ./src/styles/App.css -o ./.vitest-preview/tailwind-output.css --autoprefixer

and in my test-setup.ts

import './.vitest-preview/tailwind-output.css'