Jeff Lembeck

:+1: Starting with clean and semantic markup goes a really long way to having them build sites that are accessible (and not just in a screen-reader way).

Also: Any chance that while we're teaching them to start with semantic elements, we can also teach them CSS from a mobile first perspective?

> From a front-end perspective, I think a mobile mindset can be introduced by including responsive techniques from the start in the CSS unit, as well. Agreed in so many...

Also agree with @RobinClowers here.

This is awesome. Any chance you wanna write some tests for this as well?

Ha, left that comment before going down a few commits and seeing the deletion! :D Sorry about that.

I actually meant unit tests. We currently have a suite of them for width checks.

@jbmoelker Our most common case for respond is actually to load it behind a conditional comment for IE6-8 (as those are the browsers that would stand to benefit from it.

@Luzgan i was running into this same issue and cooked this PR up today. Hopefully it helps.

My real issue I wanted to get to the bottom of was getting variadic tuples in. But the differences in `prefixItems` and `items` and what is possible for 3.1.0 vs...