I met the guys from MixMax at the Inbox Love conference in October. They have a really cool Chrome extension that enhances the Gmail email compose editor with some interactive features.
The MixMax extension adds buttons to the Gmail compose window that allow you to insert meeting request options, surveys, link summaries, read tracking and interactive slideshows into your email.
Make your email interactive in Gmail by using CSS attribute selectors
Posted in CSS Help, Email Resource, Interactive Email, Interactive Email Tutorials by Justin On August 13, 2014