1. CSS box-decoration-break

    Controls whether the box's margins, borders, padding, and other decorations wrap the broken edges of the box fragments (when the box is split by a break (page/column/region/line).

  2. Media Queries: resolution feature

    Allows a media query to be set based on the device pixels used per CSS unit. While the standard uses `min`/`max-resolution` for this, some browsers support the older non-standard `device-pixel-ratio` media query.

  3. Window.devicePixelRatio

    Read-only property that returns the ratio of the (vertical) size of one physical pixel on the current display device to the size of one CSS pixel.

  4. text-decoration styling

    Method of defining the type, style and color of lines in the text-decoration property. These can be defined as shorthand (e.g. `text-decoration: line-through dashed blue`) or as single properties (e.g. `text-decoration-color: blue`)

  5. Vibration API

    Method to access the vibration mechanism of the hosting device.

  6. WebAssembly Bulk Memory Operations

    An extension to WebAssembly adding bulk memory operations and conditional segment initialization

  7. dynamicscompressornode api: ratio

  8. css at-rule: `@media`: `-moz-device-pixel-ratio` media feature

  9. css at-rule: `@media`: `-webkit-device-pixel-ratio` media feature

  10. css at-rule: `@media`: `-webkit-max-device-pixel-ratio` media feature

  11. css at-rule: `@media`: `-webkit-min-device-pixel-ratio` media feature

  12. css at-rule: `@media`: `aspect-ratio` media feature

  13. css at-rule: `@media`: `device-aspect-ratio` media feature

  14. css property: aspect-ratio

  15. css property: aspect-ratio: auto

  16. types: `<ratio>`

  17. types: `<ratio>`: accepts a single <number> as a value.

  18. html element: img: aspect ratio computed from `width` and `height` attributes

  19. html element: video: aspect ratio computed from `width` and `height` attributes

  20. javascript built-in: intl: durationformat: `durationformat()` constructor

  21. javascript built-in: intl: durationformat: format

  22. javascript built-in: intl: durationformat: formattoparts

  23. javascript built-in: intl: durationformat: resolvedoptions

  24. javascript built-in: intl: durationformat: supportedlocalesof

  25. javascript built-in: temporal api: duration

  26. javascript built-in: temporal api: duration: abs

  27. javascript built-in: temporal api: duration: add

  28. javascript built-in: temporal api: duration: blank

  29. javascript built-in: temporal api: duration: compare

  30. javascript built-in: temporal api: duration: days

  31. javascript built-in: temporal api: duration: from

  32. javascript built-in: temporal api: duration: hours

  33. javascript built-in: temporal api: duration: months

  34. javascript built-in: temporal api: duration: round

  35. javascript built-in: temporal api: duration: sign

  36. javascript built-in: temporal api: duration: tojson

  37. javascript built-in: temporal api: duration: total

  38. javascript built-in: temporal api: duration: weeks

  39. javascript built-in: temporal api: duration: with

  40. javascript built-in: temporal api: duration: years