CSS Framework For Responsive E-mails – Ink
We used to see lots of CSS frameworks for website layouts but it is hard to find one for e-mails.
Ink, by Zurb, fills that gap by simplifying the creation of HTML e-mails that look the same on all major e-mail clients.
The framework includes the styles for a table-based grid, buttons, panels, retina images and more.
Once the e-mail is ready, you can use the web-based Inliner tool to get all styles inline.
And, to get started quickly, take a look at the ready-to-use e-mail templates of Ink.