Matching font weights to CSS

Browsers define font weight in CSS as 100 (light), 400 (normal), 700 (bold). Glyphs (and perhaps the underlying font?) on the other hand doesn’t seem to match up. The examples show values like 70 and 150, values that are invalid for CSS, which are incremented by 100.

What master values should I be using to match up with the CSS values?

The master values have nothing to do with the weight class. They only define the interpolation space. The values you speak about are set in the instance settings > weight.

Got it.