1. CSS ::marker pseudo-element

    The `::marker` pseudo-element allows list item markers to be styled or have their content value customized.

  2. getComputedStyle

    API to get the current computed CSS styles applied to an element. This may be the current value applied by an animation or as set by a stylesheet.

  3. CSS outline properties

    The CSS outline properties draw a border around an element that does not affect layout, making it ideal for highlighting. This covers the `outline` shorthand, as well as `outline-width`, `outline-style`, `outline-color` and `outline-offset`.

  4. element api: computedstylemap

  5. htmlelement api: attributestylemap

  6. htmlelement api: style

  7. htmlelement api: style: returns `cssstyleproperties` (not `cssstyledeclaration`)

  8. htmlstyleelement api

  9. htmlstyleelement api: blocking

  10. htmlstyleelement api: disabled

  11. htmlstyleelement api: media

  12. htmlstyleelement api: sheet

  13. htmlstyleelement api: type

  14. mathmlelement api: attributestylemap

  15. mathmlelement api: style

  16. mathmlelement api: style: returns `cssstyleproperties` (not `cssstyledeclaration`)

  17. svgelement api: attributestylemap

  18. svgelement api: style

  19. svgelement api: style: returns `cssstyleproperties` (not `cssstyledeclaration`)

  20. svgstyleelement api

  21. svgstyleelement api: disabled

  22. svgstyleelement api: media

  23. svgstyleelement api: sheet

  24. svgstyleelement api: title

  25. svgstyleelement api: type

  26. window api: getcomputedstyle: pseudo-element support

  27. window api: getdefaultcomputedstyle: pseudo-element support

  28. html element: h1: no user agent styles in `<article>`, `<aside>`, `<nav>`, and `<section>`.

  29. html element: link: rel: rel=modulepreload: `as=style`

  30. html element: link: rel: rel=preload: `as=style`

  31. html element: style

  32. html element: style: blocking

  33. html element: style: media

  34. html element: style: type

  35. elements: mstyle

  36. elements: mstyle: background

  37. elements: mstyle: color

  38. elements: mstyle: fontsize

  39. elements: mstyle: fontstyle

  40. elements: mstyle: fontweight

  41. svg element: style

  42. svg element: style: media

  43. svg element: style: title

  44. svg element: style: type