protected function outputBlock(array $aLines, string $sType): void
    {
        $aLengths   = array_map('strlen', $aLines);
        $iMaxLength = max($aLengths);

        $this->oOutput->writeln('<' . $sType . '> ' . str_pad('', $iMaxLength, ' ') . ' </' . $sType . '>');
        foreach ($aLines as $sLine) {
            $this->oOutput->writeln('<' . $sType . '> ' . str_pad($sLine, $iMaxLength, ' ') . ' </' . $sType . '>');
        }
        $this->oOutput->writeln('<' . $sType . '> ' . str_pad('', $iMaxLength, ' ') . ' </' . $sType . '>');
    }