1. COLR/CPAL(v1) Font Formats

    COLRv1 is an improved version of COLRv0, this is also part of the OpenType specification. COLRv1 supports additional graphic capabilities. In addition to solid colors, gradient fills can be used, as well as more complex fills using other graphic operations, including affine transformations and various blending modes.

  2. ::placeholder CSS pseudo-element

    The ::placeholder pseudo-element represents placeholder text in an input field: text that represents the input and provides a hint to the user on how to fill out the form. For example, a date-input field might have the placeholder text `YYYY-MM-DD` to clarify that numeric dates are to be entered in year-month-day order.

  3. ECMAScript 2015 (ES6)

    Support for the ECMAScript 2015 specification. Features include Promises, Modules, Classes, Template Literals, Arrow Functions, Let and Const, Default Parameters, Generators, Destructuring Assignment, Rest & Spread, Map/Set & WeakMap/WeakSet and many more.

  4. Intrinsic & Extrinsic Sizing

    Allows for the heights and widths to be specified in intrinsic values using the `max-content`, `min-content`, `fit-content` and `stretch` (formerly `fill`) properties.

  5. CSS3 Multiple column layout

    Method of flowing information in multiple columns

  6. Promise.prototype.finally

    When the promise is settled, whether fulfilled or rejected, the specified callback function is executed.

  7. CSS text-stroke and text-fill

    Method of declaring the outline (stroke) width and color for text.

  8. animation api: browsers automatically remove indefinite filling animations

  9. canvasrenderingcontext2d api: fill

  10. canvasrenderingcontext2d api: fillrect

  11. canvasrenderingcontext2d api: fillstyle

  12. canvasrenderingcontext2d api: fill: `path` parameter

  13. offscreencanvasrenderingcontext2d api: fill

  14. offscreencanvasrenderingcontext2d api: fillrect

  15. offscreencanvasrenderingcontext2d api: fillstyle

  16. offscreencanvasrenderingcontext2d api: filltext

  17. paintrenderingcontext2d api: fill

  18. paintrenderingcontext2d api: fillrect

  19. paintrenderingcontext2d api: fillstyle

  20. svggeometryelement api: ispointinfill

  21. svggeometryelement api: ispointinfill: accepts a `dompoint` as `point` parameter

  22. xrframe api: filljointradii

  23. xrframe api: fillposes

  24. css property: -webkit-text-fill-color

  25. css property: animation-fill-mode

  26. css property: animation-fill-mode: backwards

  27. css property: animation-fill-mode: both

  28. css property: animation-fill-mode: forwards

  29. css property: animation-fill-mode: none

  30. css property: border-image: fill

  31. css property: clip-path: fill-box

  32. css property: column-fill

  33. css property: column-fill: auto

  34. css property: column-fill: balance

  35. css property: column-fill: balance-all

  36. css property: fill

  37. css property: fill-opacity

  38. css property: fill-rule

  39. css property: fill-rule: evenodd

  40. css property: fill-rule: nonzero

  41. css property: mask-origin: `fill-box`

  42. css property: object-fit: fill

  43. css property: text-emphasis-style: filled

  44. css property: transform-box: fill-box

  45. css selector: `:autofill`

  46. javascript built-in: array: fill

  47. javascript built-in: typedarray: fill

  48. global_attributes: fill

  49. global_attributes: fill-rule

  50. global_attributes: fill: `context-fill`