1. CSS Variables (Custom Properties)

    Permits the declaration and usage of cascading variables in stylesheets.

  2. 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.

  3. WAI-ARIA Accessibility features

    Method of providing ways for people with disabilities to use dynamic web content and web applications.

  4. elementinternals api: ariaatomic

  5. elementinternals api: ariabusy

  6. elementinternals api: ariahidden

  7. elementinternals api: arialabel

  8. elementinternals api: arialevel

  9. elementinternals api: arialive

  10. elementinternals api: ariamodal

  11. elementinternals api: ariapressed

  12. elementinternals api: ariasort

  13. element api: ariaatomic

  14. element api: ariaautocomplete

  15. element api: ariabusy

  16. element api: ariachecked

  17. element api: ariacolcount

  18. element api: ariacolindex

  19. element api: ariacolspan

  20. element api: ariacurrent

  21. element api: ariadescription

  22. element api: ariadisabled

  23. element api: ariaexpanded

  24. element api: ariahaspopup

  25. element api: ariahidden

  26. element api: ariakeyshortcuts

  27. element api: arialabel

  28. element api: arialevel

  29. element api: arialive

  30. element api: ariamodal

  31. element api: ariamultiline

  32. element api: ariamultiselectable

  33. element api: ariaorientation

  34. element api: ariaplaceholder

  35. element api: ariaposinset

  36. element api: ariapressed

  37. element api: ariareadonly

  38. element api: ariarelevant

  39. element api: ariarequired

  40. element api: ariaroledescription

  41. element api: ariarowcount

  42. element api: ariarowindex

  43. element api: ariarowspan

  44. element api: ariaselected

  45. element api: ariasetsize

  46. element api: ariasort

  47. element api: ariavaluemax

  48. element api: ariavaluemin

  49. element api: ariavaluenow

  50. element api: ariavaluetext