1. CSS font-variant-numeric

    CSS property that provides different ways of displaying numbers, fractions, and ordinal markers.

  2. cssfontfacerule api: style

  3. fontdata api: style

  4. fontface api: style

  5. css at-rule: `@font-face`: font-style

  6. css at-rule: `@font-feature-values`: `@styleset`

  7. css property: font-style

  8. css property: font-style: `oblique` can accept an `<angle>`

  9. css property: font-synthesis-style

  10. css property: font-variant-alternates: `styleset()`