Set up Master CSS in Angular


Guide to setting up Master CSS in your Angular project.

Master CSS Progressive Rendering scans the rendered HTML ahead of time, server-side or at build time, generates the corresponding CSS rules for each page, and lazy loads the runtime engine to keep track of the dynamic class names.

Faster page loading

Non-rendering-blocking internal CSS and lazy loading

Fully automatic

Capture any program-generated class names

CSS encapsulation

Only ship the page-used CSS instead of the whole site

Quick start

Clone the example

Copy-paste the commands to quickly start using the example.

You can skip all installation steps.

npm create @master/css@rc project --example angular
cd project
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

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

Install Master CSS Server into your project via package managers.

npm install @master/css-runtime@rc @master/css-server@rc

Set up CSS runtime engine

Initialize the runtime engine with your configuration.

There is currently no solution for lazy loading runtime engine in Angular. Wait for Angular to officially release a major version based on Vite.

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

Set up Angular Universal

Run the command to create a Angular server-side application.

npx ng add @nguniversal/express-engine

Set up CSS pre-rendering

All CSS rules are pre-rendered and injected into HTML on the server side or at build time.

import { render } from '@master/css-server';
import config from './master.css';
export function app() {
server.get('*', (req, res) => {
res.render(indexHtml, { req, providers: [{ provide: APP_BASE_HREF, useValue: req.baseUrl }] });
res.render(indexHtml, { req, providers: [{ provide: APP_BASE_HREF, useValue: req.baseUrl }] },
(error: Error, html: string) => {
? console.error(error)
: res.send(render(html, config).html)

Launch server

Run the development server.

npm run dev:ssr

Start using Master CSS

Now style your first element using Master CSS syntax!

<h1 class="font:40 font:heavy italic m:12x text:center">Hello World</h1>

Open your browser to watch the changes.


Hello World

© Aoyue Design LLC.