protected function handleHeader($level)
    {
        if ($this->parser->isStartTag) {
            $this->parser->tagAttributes['cssSelector'] = $this->getCurrentCssSelector();
            $this->stack();
        } else {
            $tag = $this->unstack();
            if (!empty($tag['cssSelector'])) {
                // {#id.class}
                $this->out(' {' . $tag['cssSelector'] . '}');
            }
        }
        parent::handleHeader($level);
    }