1. 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.

  2. geolocationcoordinates api: altitude

  3. geolocationcoordinates api: altitudeaccuracy

  4. gestureevent api: altkey

  5. htmlareaelement api: alt

  6. htmlimageelement api: alt

  7. htmlinputelement api: alt

  8. keyboardevent api: altkey

  9. keyboardevent api: getmodifierstate: `"alt"` as `key` parameter

  10. keyboardevent api: getmodifierstate: `"altgraph"` as `key` parameter

  11. mouseevent api: altkey

  12. pointerevent api: altitudeangle

  13. pointerevent api: `pointerevent()` constructor: `options.altitudeangle` parameter

  14. touchevent api: altkey

  15. touch api: altitudeangle

  16. usbalternateinterface api

  17. usbalternateinterface api: alternatesetting

  18. usbalternateinterface api: endpoints

  19. usbalternateinterface api: interfaceclass

  20. usbalternateinterface api: interfacename

  21. usbalternateinterface api: interfaceprotocol

  22. usbalternateinterface api: interfacesubclass

  23. usbalternateinterface api: `usbalternateinterface()` constructor

  24. usbalternateinterface api: available in workers

  25. usbinterface api: alternate

  26. usbinterface api: alternates

  27. css property: alt

  28. css property: animation-direction: alternate

  29. css property: animation-direction: alternate-reverse

  30. css property: animation: alternate

  31. css property: animation: alternate-reverse

  32. css property: content: alternative text after `/`

  33. css property: content: alternative text after `/`: `counter()` and `counters()` in alternative text

  34. css property: font-variant-alternates: `annotation()`

  35. css property: font-variant-alternates: `character-variant()`

  36. css property: font-variant-alternates: historical-forms

  37. css property: font-variant-alternates: normal

  38. css property: font-variant-alternates: `ornaments()`

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

  40. css property: font-variant-alternates: `stylistic()`

  41. css property: font-variant-alternates: `swash()`

  42. css property: ruby-position: alternate

  43. html element: area: alt

  44. html element: img: alt

  45. html element: input: alt

  46. headers http header: alt-svc

  47. javascript built-in: globalthis