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. element api: ariaatomic

  5. element api: ariaautocomplete

  6. element api: ariabraillelabel

  7. element api: ariabusy

  8. element api: ariachecked

  9. element api: ariacolcount

  10. element api: ariacolindex

  11. element api: ariacolindextext

  12. element api: ariacolspan

  13. element api: ariacontrolselements

  14. element api: ariacurrent

  15. element api: ariadescription

  16. element api: ariadetailselements

  17. element api: ariadisabled

  18. element api: ariaexpanded

  19. element api: ariaflowtoelements

  20. element api: ariahaspopup

  21. element api: ariahidden

  22. element api: ariainvalid

  23. element api: ariakeyshortcuts

  24. element api: arialabel

  25. element api: arialabelledbyelements

  26. element api: arialevel

  27. element api: arialive

  28. element api: ariamodal

  29. element api: ariamultiline

  30. element api: ariamultiselectable

  31. element api: ariaorientation

  32. element api: ariaownselements

  33. element api: ariaplaceholder

  34. element api: ariaposinset

  35. element api: ariapressed

  36. element api: ariareadonly

  37. element api: ariarelevant

  38. element api: ariarequired

  39. element api: ariaroledescription

  40. element api: ariarowcount

  41. element api: ariarowindex

  42. element api: ariarowindextext

  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