Exactly, as long as the styles aren't stripped, they should work fine within the iOS WebView. I assume that has rough parity with Mobile Safari.

US (New York) it's:

font-family: 'San Francisco', -apple-system, BlinkMacSystemFont, '.SFNSText-Regular', sans-serif;

(MacOS)

Adobe has needed to use relative vs absolute paths for linked files for a long time, but if you add them to Creative Cloud libraries it shouldn't be an issue.

Bourbon Neat is a nice lightweight example of this. And it allows for breakpoints wherever you need them. Bourbon Neat

Using shared libraries would be awesome, especially if you improved the way they're shown (more options for ordering with colors, larger quick view for picking items from a pattern library—think spacebar preview in Mac Finder).

I agree completely. I wish Sketch hadn't used Photoshop as a model for manipulating objects. I rarely ever open the layer panel in Illustrator.

This happens when selecting text too, and is even more confusing. :/

What unit does the paragraph spacing use? I can understand line-height using a multiple of the font-size, but there's no parallel for doing this with paragraph spacing on the web…

Who led design on this? I'd be really cool to see a behind the scenes :)

Fontshop posted this today: USER INTERFACE Great interface typography silently yet persistently reminds the user why they looked up your client in the first place, and why they’ll be sticking with them.