webextensions-examples/react-es6-popup/src/nested-component.js

import React from 'react';

export default class Nested extends React.Component {
  render() {
    return (
      <div>
        <h2>Nested Component</h2>
        <p>
          This is an example of a nested component that was imported via
          import / export syntax.
        </p>
      </div>
    );
  }
}