Set up Master CSS in React

Guide to setting up Master CSS in your React project.

Master CSS Static Extraction integrates build tools to scan project source code, extract class names, generate CSS rules, and write them into a virtual CSS module.

Zero runtime

Generate virtual CSS modules at build time

Semi-dynamic

Scan all source code to extract class names

Cross-page caching

Download the CSS bundle for all pages at once

Quick start

Clone the example

Copy-paste the commands to quickly start using the https://react.se.rc.css.master.co example.

You can skip all installation steps.

npm create @master/css@rc project --example react-with-static-extraction
cd project
npm run dev

Installation

Create a project

If you don't have a React project, create one first. It's recommended to refer to Start a New React Project.

npm create vite@latest project -- --template react-ts
cd project

Initialize configuration file

Run npm create @master/css@rc to create a configuration file master.css.ts.

npm create @master/css@rc

Install Master CSS Extractor

Install the Master CSS extractor into your project via package managers.

npm install @master/css-extractor.vite@rc

Set up CSS extractor

Add a masterCSSExtractor to the vite plugins

import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react'
import masterCSSExtractor from '@master/css-extractor.vite'
 
export default defineConfig({
    plugins: [
        react(),
        masterCSSExtractor()
    ],
})

Import virtual CSS module

Import the virtual CSS module .virtual/master.css into the main.tsx.

…
import '.virtual/master.css';

Launch server

Run the Vite development server.

npm run dev -- --open

Hello world!

Now style your first element using Master CSS syntax!

export default function App() {
    return (
        <h1 className="font:40 font:heavy italic m:12x text:center">Hello World</h1>
    )
}

Open your browser to watch the changes.

localhost:5173