How do I add tailwindcss to vite version 0 to 3? (not including V4)

I'm using vite 0.16.6 and wanted to migrated a vuepress site to using vite.

However I was unsure how to configure vite to using tailwindcss.

in my index.css

@tailwind base;
@tailwind components;
@tailwind utilities;

#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}

After some digging, looks like that we have to include a postcss.config.js in the root directory of the application

module.exports = {
  plugins: [
    // ...
    require('tailwindcss'),
    require('autoprefixer'),
    // ...
  ]
}

for Vite V4

https://stackoverflow.com/a/79538862/2312051