login.js

const Form = () => {
  return (
    <form>
      <input type="email"/>
      <input type="password"/>
      <button type="submit">Submit</button>
    </form>
  )
}

class Login extends React.Component{
  render() {
    return (
      <div>
        <h1>Login</h1>
        <Form />
      </div>
    )
  }
}


ReactDOM.render(
  <Login />,
  document.getElementById('app')
);