RSD3 really beautiful.
But still a question about the very clear explanation of
Suzanne's step-by-step example of cleaning up the old layout code and implementing Grid reading. If I understand this correctly and you have done all the steps, then there is no fallback for older browsers here.
If you want a fallback, can you simply remove the containers with the classes row?

No Ger, for creating a fallback you first design for mobile and create a simple layout (you can use flexbox) for IE. Then you toggle the Feature Query and use CSS Grid to enhance your design. I will have an article with the details ready about that early next week.

Hi Bob,
Can you please post the link to the article about fallbacks and feature query?

I'm trying to learn more about it as I'm having issues with users on IE 11.

Thanks heaps,
John

You can find this at: https://tutorials.coffeecup.com/site-designer/feature-queries.html