SOURCE

class Hello extends React.Component {
  render() {
    return (
      <div>
      	hello {this.props.name}
      	<p>{this.props.age}</p>
      </div>
    );
  }
}

ReactDOM.render( <Hello name = "Bob" age = "13" />, document.getElementById("example"));

<script src='https://unpkg.com/react/umd/react.production.min.js'>
</script>
<script src='https://unpkg.com/react-dom/umd/react-dom.production.min.js'>
</script>

<div id = "example"></div>