public function mailTo(String $mail, String $value = NULL, Array $attributes = []) : String
    {
        if( ! IS::email($mail) )
        {
            throw new InvalidArgumentException('Error', 'emailParameter', '1.($mail)');
        }

        $attributes['href'] = 'mailto:' . $mail;

        return $this->_multiElement('a', $value ?? $mail, $attributes);
    }