content: import React from 'react'
  import Document, { Head, Main, NextScript } from 'next/document'
  
  // ---------------------------------------------
  
  export default class CustomDocument extends Document {
    render () {
      return (<html lang='en-US'>
        <Head>
          <meta name='viewport' content='width=device-width, initial-scale=1' />
          <meta name='robots' content='noindex' />
          <link rel='stylesheet' href='/static/style.css' />
        </Head>
  
        <body>
          <Main />
          <NextScript />
        </body>
      </html>)
    }
  }
  