1. CSS3 Transitions

    Simple method of animating certain properties of an element, with ability to define property, duration, delay and timing function.

  2. PageTransitionEvent

    Fired at the Window when the page's entry in the session history stops being the current entry. Includes the `pageshow` and `pagehide` events.

  3. View Transitions API (single-document)

    Provides a mechanism for easily creating animated transitions between different DOM states, while also updating the DOM contents in a single step. This API is specific to single-document transitions, support for same-origin cross-document transitions is [being planned](https://github.com/WICG/view-transitions/blob/main/cross-doc-explainer.md).

  4. csstransition api

  5. csstransition api: transitionproperty

  6. element api: `transitioncancel` event

  7. element api: `transitionend` event

  8. element api: `transitionrun` event

  9. element api: `transitionstart` event

  10. navigateevent api: transitionwhile

  11. navigationtransition api

  12. navigationtransition api: finished

  13. navigationtransition api: from

  14. navigationtransition api: navigationtype

  15. navigation api: transition

  16. pagetransitionevent api

  17. pagetransitionevent api: `pagetransitionevent()` constructor

  18. pagetransitionevent api: persisted

  19. transitionevent api

  20. transitionevent api: elapsedtime

  21. transitionevent api: propertyname

  22. transitionevent api: pseudoelement

  23. transitionevent api: `transitionevent()` constructor

  24. viewtransition api

  25. viewtransition api: finished

  26. viewtransition api: ready

  27. viewtransition api: skiptransition

  28. viewtransition api: updatecallbackdone

  29. css at-rule: `@media`: `-webkit-transition` media feature

  30. css property: content-visibility: transitionable when setting `transition-behavior: allow-discrete`

  31. css property: display: transitionable when setting `transition-behavior: allow-discrete`

  32. css property: transition

  33. css property: transition-behavior

  34. css property: transition-delay

  35. css property: transition-duration

  36. css property: transition-property

  37. css property: transition-property: `ident` value

  38. css property: transition-timing-function

  39. css property: transition-timing-function: `jump-` keywords for `steps()`

  40. css property: transition: gradients

  41. css property: transition: `transition-behavior` value

  42. css property: view-transition-name

  43. css selector: `::after`: animation and transition support

  44. css selector: `::before`: animation and transition support

  45. css selector: `::marker`: animation and transition support

  46. css selector: `::view-transition`

  47. css selector: `::view-transition-group()`

  48. css selector: `::view-transition-image-pair()`

  49. css selector: `::view-transition-new()`

  50. css selector: `::view-transition-old()`