react-static/examples/documentation/src/containers/404.js

A progressive static site generator for React

import React from 'react'

//

import Sidebar from 'components/Sidebar'

export default () => (
  <Sidebar>
    <h1>
      404 - Oh no's! We couldn't find that page{' '}
      <span role="img" aria-label="distraught face">
        😩
      </span>
    </h1>
  </Sidebar>
)