1. CSS3 Box-shadow

    Method of displaying an inner or outer shadow effect to elements

  2. 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.

  3. 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.

  4. CSS font-display

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

  5. CSS Generated content for pseudo-elements

    Method of displaying text or images before or after the given element's contents using the ::before and ::after pseudo-elements. All browsers with support also support the `attr()` notation in the `content` property.

  6. 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.

  7. CSS line-clamp

    CSS property that will contain text to a given amount of lines when used in combination with `display: -webkit-box`. It will end with ellipsis when `text-overflow: ellipsis` is included.

  8. CSS Masks

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

  9. CSS Reflections

    Method of displaying a reflection of an element

  10. 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`.

  11. 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`

  12. 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.

  13. 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`.

  14. CSS font-variant-numeric

    CSS property that provides different ways of displaying numbers, fractions, and ordinal markers.

  15. hidden attribute

    The `hidden` attribute may be applied to any element, and effectively hides elements similar to `display: none` in CSS.

  16. CSS inline-block

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

  17. 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.

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

  19. css at-rule: `@media`: `display-mode` media feature: `picture-in-picture` value

  20. css property: display

  21. css property: display: contents

  22. css property: display: contents: specific behavior of unusual elements when `display: contents` is applied to them

  23. css property: display: `<display-outside>`

  24. css property: display: flex

  25. css property: display: flow-root

  26. css property: display: grid

  27. css property: display: inline-block

  28. css property: display: inline-flex

  29. css property: display: inline-grid

  30. css property: display: inline-table

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

  32. css property: display: `@keyframe` animatable

  33. css property: display: list-item

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

  35. css property: display: math

  36. css property: display: multi-keyword values

  37. css property: display: none

  38. css property: display: ruby

  39. css property: display: ruby-base

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

  41. css property: display: ruby-text

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

  43. css property: display: table

  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