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`.
CSS3 Cursors (original values)
CSS3 cursor values added in the 2004 spec, including none, context-menu, cell, vertical-text, alias, copy, no-drop, not-allowed, nesw-resize, nwse-resize, col-resize, row-resize and all-scroll.
CSS currentColor value
A CSS value that will apply the existing `color` value to other properties like `background-color`, etc.
Datalist element
Method of setting a list of options for a user to select in a text field, while leaving the ability to enter a custom value.
Resource Hints: preload
Using `<link rel="preload">`, browsers can be informed to prefetch resources without having to execute them, allowing fine-grained control over when and how resources are loaded. Only the following `as` values are supported: fetch, image, font, script, style, track.
Web Storage - name/value pairs
Method of storing data locally like cookies, but for larger amounts of data (sessionStorage and localStorage, used to fall under HTML5).
relList (DOMTokenList)
Method of easily manipulating rel attribute values on elements, using the DOMTokenList object (similar to classList).
audioparam api: linearramptovalueattime
domtokenlist api: replace: boolean return value (not void anymore)
domtokenlist api: value
domtokenlist api: values
gpuadapter api: requestdevice: request unknown limits with `undefined` value
gpudevice api: createpipelinelayout: `bindgrouplayouts` array accepts `null` values.
highlightregistry api: values
highlight api: values
htmlimageelement api: sizes: `auto` value
htmlinputelement api: value
htmlinputelement api: valueasdate
htmlinputelement api: valueasnumber
htmllielement api: value
nodelist api: values
presentationavailability api: value
radionodelist api: value
validitystate api: valuemissing
css property: -moz-orient: `inline` value
css property: align-items: supported in flex layout: `end` value supported in flex layout
css property: align-items: supported in flex layout: `start` value supported in flex layout
css property: align-self: supported in flex layout: `stretch` value supported in flex layout
css property: background: values of `background-clip` longhand
css property: color-interpolation: `lineargradient` value
css property: color-interpolation: `linearrgb` value
css property: dynamic-range-limit: `<dynamic-range-limit-mix()>` values
css property: text-underline-offset: percentage values
types: `<color>`: `light-dark()`: `<image>` values
types: `<timeline-range-name>`: `scroll` value
html element: li: value
headers http header: content-security-policy: `report-sample` source value
headers http header: content-security-policy: `strict-dynamic` source value
headers http header: content-security-policy: `unsafe-hashes` source value
elements: mfrac: linethickness: nonzero unitless values (e.g. 5 to mean 500% the default thickness)
elements: mfrac: linethickness: `thin`, `medium`, `thick` values
svg element: ellipse: fill: `context-fill` value
svg element: fecomposite: operator: `lighter` value
svg element: polyline: fill: `context-fill` value
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