For my Salesforce Marketing Cloud group’s conversation about responsive email, I put together this list of resources. If you have any to add, just put them in the comments!

https://litmus.com/blog/wp-content/uploads/2013/09/how-to-responsive-email-design-infographic.png

Email Coding :

The How-To Guide to Responsive Email Design

https://www.marketingcloud.com/blog/7-responsive-email-design-faqs/

How to Create a Responsive Email Template

Four Equal Columns

http://www.creativebloq.com/rwd/responsive-web-design-tutorials-71410085

Email Design :

https://www.campaignmonitor.com/blog/email-marketing/2017/05/the-really-good-guide-to-email-design-bonus-checklist/
Designing for Emotional Email

Email Tools

Inliners
Inliner’s are an important tool to speed up the email creation process and still have your HTML look consistent across clients. Many email clients still strip out styles for security reasons.

https://templates.mailchimp.com/resources/inline-css/
https://putsmail.com/inliner
https://inliner.cm/