This document provides tips for improving the formatting and display of email marketing content in Outlook. It addresses issues like Outlook ignoring CSS properties for margins and padding on images, text not wrapping automatically in tables, Outlook adding unwanted borders to table cells, Outlook sometimes ignoring link styling, issues with using lists versus tables for spacing, and using cellpadding and cellspacing attributes with tables instead of CSS properties. Following these tips can help content display properly despite how Outlook may try to alter the design.