Set up Master CSS in Angular

Guide to setting up Master CSS in your Angular project.

Master CSS Runtime Rendering observes changes in DOM class names at browser runtime, generates corresponding CSS rules, and injects them into the running style sheet.

Fixed style cost

All features work out of the box with ~16KB transfer cost

Fully automatic

Capture any program-generated class names

CSS lifecycle

CSS is generated on demand and frees memory when not in use

Quick start

Clone the example

Copy-paste the following commands to quickly start using the

You can skip all installation steps.

npx degit master-co/css/examples/angular-with-runtime-rendering my-project
cd my-project
npm install @master/css@beta
npm install
npm run dev


Create a project

If you don't have a Angular project, create one first. It's recommended to refer Angular CLI.

ng new project
cd project

Install Master CSS

Install Master CSS into your project via package managers.

npm install @master/css@beta

Initialize configuration file

Run npx mcss init to create a configuration file master.css.ts.

npx mcss init

Set up CSS runtime engine

Import master.css.ts into the entry file src/main.ts to enable the runtime engine.

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule } from './app/app.module';
import { initRuntime } from '@master/css';
import config from '../master.css';
.catch(err => console.error(err));

Avoid flash of unstyled content

Add display: 'none' in <html> to avoid FOUC caused by the runtime engine not yet injecting CSS rules.

<!doctype html>
<html lang="en" style="display: none">

Launch server

Run the development server.

npm run start

Start using Master CSS

Now style your first element using Master CSS syntax!

<h1 class="font:40 font:heavy italic m:50 text:center">Hello World</h1>

Open your browser to watch the changes.


Hello World

MIT License © Aoyue Design LLC.