Link Bootstrap to your React JS application.

Once you have already installed the Bootstrap using npm command do the below to include the Bootstrap in your React app


index.js

import '../node_modules/bootstrap/dist/css/bootstrap.min.css';

App.js (to test)

<button type="button" className="btn btn-primary">Primary</button>

The entire App.js will something like this

import React, { Component } from 'react'; 

class App extends Component { 

 render() { 
 return ( 
 <div> 
 <button type="button" className="btn btn-primary">Primary</button> 
 </div> );
 } 
} 
export default App;