Hey there! The Custom HTML validation is only there to try to assist you by pointing out possible broken HTML tags. However it’s not perfect and can mistakenly see valid HTML as invalid. As long as the HTML renders properly on the live page you can ignore this error.

Keep in mind Custom HTML doesn’t render within the page builder itself. I highly recommend publishing the page to view your custom HTML. I just checked your pages myself and it appears to be rendering just fine.

If you are encountering further issues shoot an email to support@unbounce.com.