1. CSS color() function

    The CSS `color()` function allows the browser to display colors in any color space, such as the P3 color space which can display colors outside of the default sRGB color space.

  2. CSS display: contents

    `display: contents` causes an element's children to appear as if they were direct children of the element's parent, ignoring the element itself. This can be useful when a wrapper element should be ignored when using CSS grid or similar layout techniques.

  3. CSS font-display

    `@font-face` descriptor `font-display` that allows control over how a downloadable font renders before it is fully loaded.

  4. CSS Grid Layout (level 1)

    Method of using a grid concept to lay out content, providing a mechanism for authors to divide available space for layout into columns and rows using a set of predictable sizing behaviors. Includes support for all `grid-*` properties and the `fr` unit.

  5. CSS Grid Lanes

    CSS Grid Lanes extends CSS Grid to create layouts with columns *or* rows (not both), allowing mixed aspect ratio content to pack neatly (also known as "masonry" or "waterfall" layout).

  6. CSS Masks

    Method of displaying part of an element, using a selected image as a mask

  7. CSS revert value

    A CSS keyword value that resets a property's value to the default specified by the browser in its UA stylesheet, as if the webpage had not included any CSS. For example, `display:revert` on a `<div>` would result in `display:block`. This is in contrast to the `initial` value, which is simply defined on a per-property basis, and for `display` would be `inline`.

  8. CSS Table display

    Method of displaying elements as tables, rows, and cells. Includes support for all `display: table-*` properties as well as `display: inline-table`

  9. CSS Flexible Box Layout Module

    Method of positioning elements in horizontal or vertical stacks. Support includes all properties prefixed with `flex`, as well as `display: flex`, `display: inline-flex`, `align-content`, `align-items`, `align-self`, `justify-content` and `order`.

  10. CSS inline-block

    Method of displaying an element as a block while flowing it with text.

  11. CSS3 3D Transforms

    Method of transforming an element in the third dimension using the `transform` property. Includes support for the `perspective` property to set the perspective in z-space and the `backface-visibility` property to toggle display of the reverse side of a 3D-transformed element.

  12. css at-rule: `@media`: `display-mode` media feature

  13. css at-rule: `@media`: `display-mode` media feature: `browser` value

  14. css at-rule: `@media`: `display-mode` media feature: `fullscreen` value

  15. css at-rule: `@media`: `display-mode` media feature: `minimal-ui` value

  16. css at-rule: `@media`: `display-mode` media feature: `standalone` value

  17. css at-rule: `@media`: display-state

  18. css property: display

  19. css property: display: block

  20. css property: display: contents

  21. css property: display: flex

  22. css property: display: flow-root

  23. css property: display: grid

  24. css property: display: grid-lanes

  25. css property: display: inline

  26. css property: display: inline-block

  27. css property: display: inline-flex

  28. css property: display: inline-grid

  29. css property: display: inline-grid-lanes

  30. css property: display: inline-table

  31. css property: display: `@keyframe` animatable and transitionable (given `transition-behavior: allow-discrete`)

  32. css property: display: list-item

  33. css property: display: list-item: supported on `<legend>`

  34. css property: display: math

  35. css property: display: multi-keyword values

  36. css property: display: none

  37. css property: display: ruby

  38. css property: display: ruby-base

  39. css property: display: ruby-base-container

  40. css property: display: ruby-text

  41. css property: display: ruby-text-container

  42. css property: display: table

  43. css property: display: table-caption

  44. css property: display: table-cell

  45. css property: display: table-column

  46. css property: display: table-column-group

  47. css property: display: table-footer-group

  48. css property: display: table-header-group

  49. css property: display: table-row

  50. css property: display: table-row-group