1. CSS Environment Variables env()

    Usage of environment variables like `safe-area-inset-top`.

  2. CSS Variables (Custom Properties)

    Permits the declaration and usage of cascading variables in stylesheets.

  3. CSS font-variant-alternates

    Controls the usage of alternate glyphs associated to alternative names defined in @font-feature-values for certain types of OpenType fonts.

  4. CSS font-variant-numeric

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

  5. let

    Declares a variable with block level scope

  6. Variable fonts

    OpenType font settings that allows a single font file to behave like multiple fonts: it can contain all the allowed variations in width, weight, slant, optical size, or any other exposed axes of variation as defined by the font designer. Variations can be applied via the `font-variation-settings` property.

  7. fontface api: variant

  8. fontface api: variationsettings

  9. css property: font-variant

  10. css property: font-variant-caps

  11. css property: font-variant-caps: normal

  12. css property: font-variant-caps: small-caps

  13. css property: font-variant-caps: unicase

  14. css property: font-variant-east-asian

  15. css property: font-variant-east-asian: ruby

  16. css property: font-variant-emoji

  17. css property: font-variant-emoji: emoji

  18. css property: font-variant-emoji: normal

  19. css property: font-variant-emoji: text

  20. css property: font-variant-emoji: unicode

  21. css property: font-variant-ligatures

  22. css property: font-variant-ligatures: none

  23. css property: font-variant-numeric: normal

  24. css property: font-variant-numeric: ordinal

  25. css property: font-variant-position

  26. css property: font-variant-position: sub

  27. css property: font-variant-position: super

  28. css property: font-variant: none

  29. css property: font-variant: normal

  30. css property: font-variant: sub

  31. css property: font-variant: super

  32. css property: font-variant: `ß` → `ss`

  33. types: `env()`: inset variable `keyboard-inset-right`

  34. types: `env()`: inset variable `keyboard-inset-top`

  35. types: `var()`

  36. html element: var

  37. headers http header: no-vary-search

  38. headers http header: no-vary-search: http cache

  39. headers http header: no-vary-search: speculation rules navigational prefetch

  40. headers http header: no-vary-search: speculation rules prerender

  41. headers http header: vary

  42. javascript built-in: intl: locale: variants

  43. javascript statement: var