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!
Outlook HTML codes
Using conditional comments you can target different versions of the email outlook client and include your client specific HTML.
Outlook 2007 and 2010 can be a little tricky when it comes to stacking tables side by side or top to bottom, where you may see some undesired gaps between your tables.
Outlook 2007 – 2013 ignores margin and padding CSS styling when placed within an image.
The Outlook email clients add a spacing above and below images which have a height smaller than 19 pixels.