Match spec for font-weight: bolder|lighter

• Component: CSS
• Status: RESOLVED CONFIGURATION CHANGED

[Ryosuke Niwa]

Consider merging https://chromium.googlesource.com/chromium/blink/+/3256e906a22349f99102fdafc4e00a0989f15dc9

Currently, bolder and lighter change font-weight in a non-compliant way
The spec (http://www.w3.org/TR/css3-fonts/#bolderlighter) defines
exactly what the computed values should be given the inherited weight
values, so we should match those.

The removed FIXME's for selecting the next lightest/heaviest weight from
the used font family seems to refer to behaviour from
CSS1 (http://www.w3.org/TR/CSS1/#font-weight), while this is replaced
with a simpler procedure for resolving bolder and lighter in font weights
in CSS2 (http://www.w3.org/TR/CSS2/fonts.html#propdef-font-weight) and
CSS3 (link above).

[Ahmad Saleem]

I took a test case from Chrome patch and then changed it into following fiddle:

https://jsfiddle.net/fjsp6u7g/show

It is matching output across all browsers. Is it something fixed along the ways? Can this be marked as "RESOLVED CONFIGURATION CHANGED? Thanks!

[Ryosuke Niwa]

Yup, all browsers match.