[BafS]

Yes, the new font-family is now:

  -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";

[Ezhik]

If I'm running OS X pre-El Capitan, will `-apple-system` and `BlinkMacSystemFont` resolve to Helvetica, or will I end up seeing Roboto and Segoe UI if I have either installed?

[doctrine]

You will end up seeing Segoe UI, if that isn't installed you'll see Roboto, if that isn't installed you'll see Helvetica and so on.

[Ezhik]

Actually, now that I can try this on my machine, it does show Helvetica.

[max_]

That answers my questions.

I thought I was on a phishing site!!

[fulafel]

System default would be leaving the font family unspecified, no?