reactintro_input_simple.jsx

import React from "react";

class SimpleForm extends React.Component {
  render() {
    return (
      <div>
        <input type="text" name="firstName" />
        <Greetings firstName="John" />
      </div>
    );
  }
}

const App = () => (
  <div>
    <SimpleForm />
  </div>
);