Spent last week in Paris for @csswg face-to-face meeting. Full agenda was wiki.csswg.org/planning/pari… . Thread on some interesting bits:
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Replying to @davidbaron @csswg
Additive cascading proposal, to fix a longstanding problem with CSS cascading, was well-received. Need to find the least-bad syntax.

Aug 8, 2017 · 3:10 AM UTC

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Replying to @davidbaron @csswg
Additive cascading would allow CSS declarations to add to the next-highest-priority declaration rather than overriding.
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Open question on additive cascade is whether it's just about appending to list-valued properties, or does more interpolation.
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