This project was bootstrapped with Create React App.

To import fiori-fundamentals and fundamental-react run

npm install --save fundamental-react

Load the fiori-fundamentals styles in App.css

@import '../node_modules/fiori-fundamentals/dist/fiori-fundamentals.min.css';

Use a fundamental-react component

import Button from 'fundamental-react/lib/Button/Button';
...
<Button>Click me</Button>