Script

• "build:css": "postcss src/styles/App.css -o src/style.css",
• "watch:css": "postcss src/styles/App.css -o src/style.css -w",
• "start:app": "react-scripts start",
• "start": "npm-run-all -p watch:css start:app",
• "build:app": "react-scripts build",
• "build": "npm-run-all build:css build:app",

run npm run start:app to start the app.

Misc

Redux was used for state management to ensure pure functional component. In some component, the component state are used to handle form submission.