import React from 'react'

const PageNotFound = () => (
  <div>
    Page not found
  </div>
)

export default PageNotFound

import React from 'react'
import Placeholder from 'lib/components/Placeholder'

const PageNotFound = () => (
  <Placeholder>
    <h2>404</h2>
    <p>Page not found</p>
  </Placeholder>
)

export default PageNotFound

Improve 404 layout