content: import React from 'react';
  import styles from './menu.css';
  
  export default ({ router }) => (
    <ul className={styles.menu}>
      <li><a href="javascript:void(0);" className={styles.back} onClick={() => router.goBack()} title="go back">go back</a></li>
      <li><a href="javascript:void(0);" className={styles.forward} onClick={() => router.goForward()} title="go forward">go forward</a></li>
    </ul>
    );
  