content: import React from 'react';
  
  const ACTIVE = { color: 'red' };
  
  class App extends React.Component {
    render() {
      return (
        <div>
          <h1>APP!</h1>
          <ul>
            <li><Link to="/" activeStyle={ACTIVE}>/</Link></li>
            <li><IndexLink to="/" activeStyle={ACTIVE}>/ IndexLink</IndexLink></li>
            <li><Link to="/users" activeStyle={ACTIVE}>/users</Link></li>
            <li><IndexLink to="/users" activeStyle={ACTIVE}>/users IndexLink</IndexLink></li>
            <li><Link to="/users/ryan" activeStyle={ACTIVE}>/users/ryan</Link></li>
            <li><Link to="/users/ryan" query={{ foo: 'bar' }} activeStyle={ACTIVE}>/users/ryan?foo=bar</Link></li>
            <li><Link to="/about" activeStyle={ACTIVE}>/about</Link></li>
          </ul>
  
          {this.props.children}
        </div>
      )
    }
  }
  
  