If you're building an Ember application and you want to use Tailwind CSS for your styling, here's a quick guide on how to do that. Follow these steps below to wire up Tailwind CSS in your application:

• Run this command in your current app folder: npm install tailwindcss autoprefixer --save-dev

• Next, you'll want to install the PostCSS add-on like so: ember install ember-cli-postcss

• After that, create a Tailwind config folder inside your styles folder like so: mkdir app/styles/tailwind

• Add a config.js file inside the Tailwind folder with npx tailwind init app/styles/tailwind/config.js. Once you've got that, add this inside your config file:

module.exports = {
    content: ['./app/**/*.hbs'],
    theme: {
      extend: {},
    },
    plugins: [],
  }

• Next, you'll want to update your app.css file by adding this:

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

• Finally, you will want to go into your ember-build-cli.js file and edit that to look like so:

'use strict';

const EmberApp = require('ember-cli/lib/broccoli/ember-app');
const autoprefixer = require('autoprefixer');
const tailwind = require('tailwindcss');

module.exports = function (defaults) {
  let app = new EmberApp(defaults, {
    postcssOptions: {
      compile: {
        // track changes in template, css, scss, and tailwind config files
        cacheInclude: [/.*\.(css|scss|hbs)$/, /.tailwind\/config\.js$/],
        plugins: [
          {
            module: autoprefixer,
            options: {},
          },
          {
            module: tailwind,
            options: {
              config: './app/styles/tailwind/config.js',
            },
          },
        ],
      },
    },
  });

  return app.toTree();
};

And that's it! You've got Tailwind wired up in your Ember application now and can use any style classes you want.

Thank you for reading! :)