React: Active link

import React, { Component } from 'react'
import { Link } from 'react-router'

export default class App extends Component {
  render() {
    return (
      <div className='container'>
        <ul>
          <li><Link to='/' activeClassName='active' onlyActiveOnIndex={true}>Home</Link></li>
          <li><Link to='/admin' activeClassName='active'>Admin panel</Link></li>
          <li><Link to='/news' activeClassName='active'>News</Link></li>
        </ul>
        {this.props.children}
      </div>
    )
  }
}