SASS with Tailwind 2.x and Laravel Mix

Tailwind 2.x recommends using PostCSS for its preprocessor. However, if you still want to use Sass the documentation isn’t the clearest on how to set it up.

There is a page but it doesn’t seem to give you the step by step breakdown needed - here document whats needed to use Sass with Tailwind 2.x and Laravel-Mix.

First rename the resources/css/app.css file to use the scss extension:

mv resources/css/app.css resources/css/app.scss

Next remove the default postCss config within the webpack.mix.js config file:

// snip...
mix.postCss('resources/css/app.css', 'public/css', [
    require('postcss-import'),
    require('tailwindcss'),
    require('autoprefixer')
])

Now add the tailwind module and use the sass plugin and configure postCss to use the tailwind.config.js file:

const tailwindcss = require('tailwindcss')
// snip...
mix.sass('resources/css/app.scss', 'public/css')
    .options({ postCss: [ tailwindcss('./tailwind.config.js')]})

Thats it!

When you run npm run dev the needed sass and other js dependencies will be detected as missing and automatically installed.