You may find that your emails fonts are much larger and tables appearing folded together. Luckily there is a way to fix this problem in Outlook!
HTML Email Knowledge Base
Target Yahoo! Mail Android using CSS Media Queries
How you can have styles that only target the Yahoo! Mail Android app, using a simple workaround.
Target Yahoo! Mail iOS using CSS Media Query
You can target the Yahoo! Mail iOS app by using the @media yahoo and adding a max-width to the media query.
Target Outlook.com using the [owa] Element
You can target Outlook.com by using a CSS element called [owa] (Outlook Web Access), which is part of Outlook.com
Target AOL Mail using .aolmail_ CSS Class
You can target AOL Mail by using the CSS selector class .aolmail_ and adding your styles.
