twitter button and the validator check

• From: Nexxite Internet <info@nexxite.nl>
• Date: Fri, 17 May 2013 11:58:12 +0200
• To: www-validator@w3.org
• Message-ID: <CAFE2h6kmwLhZd3dF7PWc5=jG-fkCimt6MbMWjWBC6kdOkmGmMw@mail.gmail.com>

Is there anyone who can tell me how I can add a twitter button without
upsetting the validator check?
This is part of my page website laten
maken<http://www.nexxite.nl/web/website-laten-maken.html>
..

Received on Friday, 17 May 2013 12:26:13 UTC