TransactionHtml::new(transaction, Some(blockhash(0)), None, Chain::Mainnet, None),
      "
        <h1>Transaction <span class=monospace>[[:xdigit:]]{64}</span></h1>
        <dl>
          <dt>block</dt>
          <dd><a href=/block/0{64} class=monospace>0{64}</a></dd>
        </dl>
        .*
      "
      .unindent()
    );
  }
}