Baseline 2026 at the Midpoint: The CSS Features That Quietly Became Safe to Use

Baseline coverage skews heavily toward one half of the model. A feature lands in all three engines, gets written up as Newly Available, and the posts appear within days. The second milestone — Widely Available, roughly 30 months later — arrives without announcement, and it is the one that actually changes what you can ship without a fallback. The first half of 2026 was unusually significant on…