private function setupHead($title, $description, $keywords)
    {
        // Create title tag
        $this->setTitle($title);

        // Create meta tags
        $this->addMeta($name = '', $content = '', $httpEquiv = '', $charset = 'UTF-8');
        if (!empty($description)) {
            $this->addMeta($name = 'description', $description);
        }
        if (!empty($keywords)) {
            $this->addMeta($name = 'keywords', $keywords);
        }

        return $this;
    }