React is a JavaScript library for building user interfaces. This guide targets React v15 to v16. Components Components import React from 'react' import ReactDOM from 'react-dom' class Hello extends React.Component { render () { return <div className='message-box'> Hello {this.props.name} </div> } } const el = document.body ReactDOM.render(<Hello name='John' />, el) Use the React.js jsfiddle to sta