public function tag($tag, $content, array $attributes = [])
    {
        $content = is_array($content) ? implode(PHP_EOL, $content) : $content;
        return $this->toHtmlString('<' . $tag . $this->attributes($attributes) . '>' . PHP_EOL . $this->toHtmlString($content) . PHP_EOL . '</' . $tag . '>' . PHP_EOL);
    }