Add "page based counters"

[SystemParadox]

The support (or more appropriately the complete lack thereof) for this feature is incredibly confusing with misinformation and bad examples all over the place. It would go a long way to sorting this out if caniuse provided a definitive reference.

https://www.w3.org/TR/css-page-3/#page-based-counters

[MatthiasKunnen]

Related issues

Chromium: https://bugs.chromium.org/p/chromium/issues/detail?id=774830 Firefox: https://bugzilla.mozilla.org/show_bug.cgi?id=286443 CSSWG: https://github.com/w3c/csswg-drafts/issues/1879