# development
yarn dev # localhost:3000
# build
yarn build # gen out/
style/bundle.css
by postcss-cli
postcss.config.js
purgecss
watches pages/*
and components/*
pages/_document.tsx
includes it as raw.So I need to purge unused css.
https://dev.to/geekplux/how-to-use-tailwindcss-with-amp-in-a-next-js-project-1f97
MIT