CSS ::marker pseudo-element
The `::marker` pseudo-element allows list item markers to be styled or have their content value customized.
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.
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`.
element api: computedstylemap
htmlelement api: attributestylemap
htmlelement api: style
htmlelement api: style: returns `cssstyleproperties` (not `cssstyledeclaration`)
htmlstyleelement api
htmlstyleelement api: blocking
htmlstyleelement api: disabled
htmlstyleelement api: media
htmlstyleelement api: sheet
htmlstyleelement api: type
mathmlelement api: attributestylemap
mathmlelement api: style
mathmlelement api: style: returns `cssstyleproperties` (not `cssstyledeclaration`)
svgelement api: attributestylemap
svgelement api: style
svgelement api: style: returns `cssstyleproperties` (not `cssstyledeclaration`)
svgstyleelement api
svgstyleelement api: disabled
svgstyleelement api: media
svgstyleelement api: sheet
svgstyleelement api: title
svgstyleelement api: type
window api: getcomputedstyle: pseudo-element support
window api: getdefaultcomputedstyle: pseudo-element support
html element: h1: no user agent styles in `<article>`, `<aside>`, `<nav>`, and `<section>`.
html element: link: rel: rel=modulepreload: `as=style`
html element: link: rel: rel=preload: `as=style`
html element: style
html element: style: blocking
html element: style: media
html element: style: type
elements: mstyle
elements: mstyle: background
elements: mstyle: color
elements: mstyle: fontsize
elements: mstyle: fontstyle
elements: mstyle: fontweight
svg element: style
svg element: style: media
svg element: style: title
svg element: style: type
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