def output_open_html(self):
        text = self.token['text']
        tag = self.token['tag']
        if self._parse_block_html and tag not in _pre_tags:
            text = self.inline(text, rules=self.inline.inline_html_rules)
        extra = self.token.get('extra') or ''
        html = '<%s%s>%s</%s>' % (tag, extra, text, tag)
        return self.renderer.block_html(html)