This video talks about how to design with responsive design in Adobe Captivate. Since the creation of this video, I have changed my mind about a few points. For example, I think there are cases where using fixed pixels is appropriate, such as when you create an interface object like a button. Having that object setup with a fixed number of pixels makes sense because regardless of your screen size, you finger remains the same size. 

Here is a list of tips that I keep in the back of my mind when working with responsive design

Responsive Design Secret Tips

1. Work in Desktop View and work you way down across the breakpoints
2. Don’t think in pixels but rather think about percentages (unless your objects need to remain the same size across breakpoints)
3. Don’t use Auto Height or Auto Width
4. Turn on and use Smart Position.
5. Use the anchor tools (tophats) to select accurate positioning for all your objects
6. Use Apply position properties to all views
7. Use Apply text and text properties to all views