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<html lang="en"><title>myPage</title><script src= "https://unpkg.com/react@16/umd/react.production.min.js"></script><script src= "https://unpkg.com/react-dom@16/umd/react-dom.production.min.js"></script><script src= "https://unpkg.com/babel-standalone@6.15.0/babel.min.js"></script><body><div id="root"></div><script type="text/babel">class Welcome extends React.Component { render() { return(<h1>Hello React!</h1>); }}ReactDOM.render(<Welcome />, document.getElementById('root'));</script></body></html>