1. calc() as CSS unit value

    Method of allowing calculated values for length units, i.e. `width: calc(100% - 3em)`

  2. Client Hints: DPR, Width, Viewport-Width

    DPR, Width, and Viewport-Width hints enable proactive content negotiation between client and server, enabling automated delivery of optimized assets - e.g. auto-negotiating image DPR resolution.

  3. Media Queries: Range Syntax

    Syntax improvements to make media queries using features that have a "range" type (like width or height) less verbose. Can be used with ordinary mathematical comparison operators: `>`, `<`, `>=`, or `<=`. For example: `@media (100px <= width <= 1900px)` is the equivalent of `@media (min-width: 100px) and (max-width: 1900px)`

  4. naturalWidth & naturalHeight image properties

    Properties defining the intrinsic width and height of the image, rather than the displayed width & height.

  5. CSS min/max-width/height

    Method of setting a minimum or maximum width or height to an element.

  6. domrect api: width

  7. gputexture api: width

  8. imagebitmap api: width

  9. imagedata api: width

  10. paintsize api: width

  11. pointerevent api: width

  12. screen api: width

  13. svgrect api: width

  14. textmetrics api: width

  15. vttregion api: width

  16. xrcamera api: width

  17. xrdepthinformation api: width

  18. xrquadlayer api: width

  19. xrviewport api: width

  20. css property: border-image-width: auto

  21. css property: contain-intrinsic-width: none

  22. css property: max-width: `anchor-size()`

  23. css property: max-width: fit-content

  24. css property: max-width: `fit-content()`

  25. css property: max-width: max-content

  26. css property: max-width: min-content

  27. css property: max-width: none

  28. css property: max-width: stretch

  29. css property: min-width: `anchor-size()`

  30. css property: min-width: `auto`

  31. css property: min-width: `fit-content`

  32. css property: min-width: `fit-content()`

  33. css property: min-width: `max-content`

  34. css property: min-width: `min-content`

  35. css property: min-width: `stretch`

  36. css property: scrollbar-width: auto

  37. css property: scrollbar-width: none

  38. css property: scrollbar-width: thin

  39. css property: width

  40. css property: width: `anchor-size()`

  41. css property: width: auto

  42. css property: width: fit-content

  43. css property: width: `fit-content()`

  44. css property: width: is animatable

  45. css property: width: max-content

  46. css property: width: min-content

  47. css property: width: stretch

  48. html element: td: width

  49. html element: th: width

  50. svg element: use: width