postcss-loader version

[andyl]

Using your README, I don't have success installing postcss-loader using your instructions:

$ npm install tailwindcss postcss autoprefixer postcss-loader --save-dev

The Pragmatic Studio instructions were slightly different. This worked for me:

$ npm install tailwindcss postcss autoprefixer postcss-loader@4.2 --save-dev

See https://pragmaticstudio.com/tutorials/adding-tailwind-css-to-phoenix