content: import React from 'react';
  import PropTypes from 'prop-types';
  import styles from './topNav.css';
  
  const TopNav = ({ children }) => (
    <div className={styles.topNav} >
      {children}
    </div>
  );
  
  TopNav.propTypes = {
    children: PropTypes.node.isRequired
  };
  
  export default TopNav;
  