Check out a free preview of the full Responsive HTML Email Design course:
The "Example: Responsive Emails, part 1" Lesson is part of the full, Responsive HTML Email Design course featured in this preview video. Here's what you'd learn in this lesson:
Jason opens up the 07-example-responsive file and demonstrates how elements will hide/reflow as he resizes the browser. He then jumps to the code and explains what creates the responsive behavior.