The css style sheet identifier where a new rule should be inserted.

The text of a new rule.

Text position of a new rule in the target style sheet.

NodeId for the DOM node in whose context custom property declarations for registered properties should be validated. If omitted, declarations in the new rule text can only be validated statically, which may produce incorrect results if the declaration contains a var() for example.

The newly created rule.

Class name list.

Identifier of the frame where "via-inspector" stylesheet should be created.

If true, creates a new stylesheet for every call. If false, returns a stylesheet previously created by a call with force=false for the frame's document if it exists or creates a new stylesheet (default: false).

Identifier of the created "via-inspector" stylesheet.

The element id for which to force the pseudo state.

Element pseudo classes to force when computing the element's style.

The element id for which to force the starting-style state.

Boolean indicating if this is on or off.

Id of the node to get background colors for.

The range of background colors behind this element, if it contains any visible text. If no visible text is present, this will be undefined. In the case of a flat background color, this will consist of simply that color. In the case of a gradient, this will consist of each of the color stops. For anything more complicated, this will be an empty array. Images will be ignored (as if the image had failed to load).

The computed font size for this node, as a CSS computed value string (e.g. '12px').

The computed font weight for this node, as a CSS computed value string (e.g. 'normal' or '100').

Computed style for the specified DOM node.

A list of non-standard "extra fields" which blink stores alongside each computed style.

Inline style for the specified DOM node.

Attribute-defined element style (e.g. resulting from "width=20 height=100%").

Inline style for the specified DOM node.

Attribute-defined element style (e.g. resulting from "width=20 height=100%").

CSS rules matching this node, from all applicable stylesheets.

Pseudo style matches for this node.

A chain of inherited styles (from the immediate node parent up to the DOM tree root).

A chain of inherited pseudo element styles (from the immediate node parent up to the DOM tree root).

A list of CSS keyframed animations matching this node.

A list of CSS @position-try rules matching this node, based on the position-try-fallbacks property.

Index of the active fallback in the applied position-try-fallback property, will not be set if there is no active position-try fallback.

A list of CSS at-property rules matching this node.

A list of CSS property registrations matching this node.

A font-palette-values rule matching this node.

Id of the first parent element that does not have display: contents.

A list of CSS at-function rules referenced by styles of this node.

Usage statistics for every employed platform font.

The stylesheet text.

The element id for which to set property.

The resulting key text after modification.

The resulting CSS media rule after modification.

The resulting key text after modification.

The resulting selector list after modification.

URL of source map associated with script (if any).

NodeId for the DOM node in whose context custom property declarations for registered properties should be validated. If omitted, declarations in the new rule text can only be validated statically, which may produce incorrect results if the declaration contains a var() for example.

The resulting styles after modification.

Monotonically increasing time, in seconds.

Styles coming from animations.

Style coming from transitions.

Inherited style entries for animationsStyle and transitionsStyle from the inheritance chain of the element.

Cascade-dependent keywords (revert/revert-layer) do not work.

Id of the node in whose context the expression is evaluated

Only longhands and custom property names are accepted.

Pseudo element type, only works for pseudo elements that generate elements in the tree, such as ::before and ::after.

Pseudo element custom ident.

The resulting CSS container query rule after modification.

Whether rendering of local fonts is enabled.

The resulting CSS Scope rule after modification.

The resulting CSS Supports rule after modification.

The list of node Ids that have their tracked computed styles updated.

The web font that has loaded.

Added stylesheet metainfo.

Identifier of the removed stylesheet.

The node id that has updated computed styles.

The name of the animation.

The style coming from the animation.

Computed style property name.

Computed style property value.

The css style sheet identifier (absent for user agent stylesheet and user-specified stylesheet rules) this rule came from.

Parent stylesheet's origin.

Associated font palette name.

Associated style declaration.

Media query for this conditional block. Only one type of condition should be set.

Container query for this conditional block. Only one type of condition should be set.

@supports CSS at-rule condition. Only one type of condition should be set.

Block body.

The condition text.

A conditional block. If set, style should not be set.

Values set by this node. If set, condition should not be set.

The parameter name.

The parameter type.

Name of the function.

The css style sheet identifier (absent for user agent stylesheet and user-specified stylesheet rules) this rule came from.

Parent stylesheet's origin.

List of parameters.

Function body.

The css style sheet identifier (absent for user agent stylesheet and user-specified stylesheet rules) this rule came from.

Parent stylesheet's origin.

Associated key text.

Associated style declaration.

Animation name.

List of keyframes.

Media query text.

Source of the media query: "mediaRule" if specified by a @media rule, "importRule" if specified by an @import rule, "linkedSheet" if specified by a "media" attribute in a linked stylesheet's LINK tag, "inlineSheet" if specified by a "media" attribute in an inline stylesheet's STYLE tag.

URL of the document containing the media query description.

The associated rule (@media or @import) header range in the enclosing stylesheet (if available).

Identifier of the stylesheet containing this object (if exists).

Array of media queries.

The prelude dashed-ident name

The css style sheet identifier (absent for user agent stylesheet and user-specified stylesheet rules) this rule came from.

Parent stylesheet's origin.

Associated style declaration.

The property name.

The property value.

Whether the property has "!important" annotation (implies false if absent).

Whether the property is implicit (implies false if absent).

The full property text as specified in the style.

Whether the property is understood by the browser (implies true if absent).

Whether the property is disabled by the user (present for source-based properties only).

The entire property range in the enclosing style declaration (if available).

Parsed longhand components of this property if it is a shorthand. This field will be empty if the given property is not a shorthand.

The css style sheet identifier (absent for user agent stylesheet and user-specified stylesheet rules) this rule came from.

Parent stylesheet's origin.

Associated property name.

Associated style declaration.

The css style sheet identifier (absent for user agent stylesheet and user-specified stylesheet rules) this rule came from.

Rule selector data.

Array of selectors from ancestor style rules, sorted by distance from the current rule.

Parent stylesheet's origin.

Associated style declaration.

Media list array (for rules involving media queries). The array enumerates media queries starting with the innermost one, going outwards.

Container query list array (for rules involving container queries). The array enumerates container queries starting with the innermost one, going outwards.

@supports CSS at-rule array. The array enumerates @supports at-rules starting with the innermost one, going outwards.

Cascade layer array. Contains the layer hierarchy that this rule belongs to starting with the innermost layer and going outwards.

@scope CSS at-rule array. The array enumerates @scope at-rules starting with the innermost one, going outwards.

The array keeps the types of ancestor CSSRules from the innermost going outwards.

@starting-style CSS at-rule array. The array enumerates @starting-style at-rules starting with the innermost one, going outwards.

The css style sheet identifier (absent for user agent stylesheet and user-specified stylesheet rules) this rule came from.

CSS properties in the style.

Computed values for all shorthands found in the style.

Style declaration text (if available).

Style declaration range in the enclosing stylesheet (if available).

The stylesheet identifier.

Owner frame identifier.

Stylesheet resource URL. Empty if this is a constructed stylesheet created using new CSSStyleSheet() (but non-empty if this is a constructed stylesheet imported as a CSS module script).

URL of source map associated with the stylesheet (if any).

Stylesheet origin.

Stylesheet title.

The backend id for the owner node of the stylesheet.

Denotes whether the stylesheet is disabled.

Whether the sourceURL field value comes from the sourceURL comment.

Whether this stylesheet is created for STYLE tag by parser. This flag is not set for document.written STYLE tags.

Whether this stylesheet is mutable. Inline stylesheets become mutable after they have been modified via CSSOM API. <link> element's stylesheets become mutable only if DevTools modifies them. Constructed stylesheets (new CSSStyleSheet()) are mutable immediately after creation.

True if this stylesheet is created through new CSSStyleSheet() or imported as a CSS module script.

Line offset of the stylesheet within the resource (zero based).

Column offset of the stylesheet within the resource (zero based).

Size of the content (in characters).

Line offset of the end of the stylesheet within the resource (zero based).

Column offset of the end of the stylesheet within the resource (zero based).

If the style sheet was loaded from a network resource, this indicates when the resource failed to load

The css style sheet identifier (absent for user agent stylesheet and user-specified stylesheet rules) this rule came from.

Parent stylesheet's origin.

Associated style declaration.

The font-family.

The font-style.

The font-variant.

The font-weight.

The font-stretch.

The font-display.

The unicode-range.

The src.

The resolved platform font family

Available variation settings (a.k.a. "axes").

The font-variation-setting tag (a.k.a. "axis tag").

Human-readable variation name in the default language (normally, "en").

The minimum value (inclusive) the font supports for this tag.

The maximum value (inclusive) the font supports for this tag.

The default value.

Styles coming from the animations of the ancestor, if any, in the style inheritance chain.

The style coming from the transitions of the ancestor, if any, in the style inheritance chain.

Matches of pseudo styles from the pseudos of an ancestor node.

The ancestor node's inline style, if any, in the style inheritance chain.

Matches of CSS rules matching the ancestor node in the style inheritance chain.

Array of media query expressions.

Whether the media query condition is satisfied.

Media query expression value.

Media query expression units.

Media query expression feature.

The associated range of the value text in the enclosing stylesheet (if available).

Computed length of media query expression (if applicable).

Font's family name reported by platform.

Font's PostScript name reported by platform.

Indicates if the font was downloaded or resolved locally.

Amount of glyphs that were rendered with this font.

Pseudo element type.

Pseudo element custom ident.

Matches of CSS rules applicable to the pseudo style.

CSS rule in the match.

Matching selector indices in the rule's selectorList selectors (0-based).

The css style sheet identifier (absent for user agent stylesheet and user-specified stylesheet rules) this rule came from.

Offset of the start of the rule (including selector) from the beginning of the stylesheet.

Offset of the end of the rule body from the beginning of the stylesheet.

Indicates whether the rule was actually used by some element in the page.

Selectors in the list.

Rule selector text.

Shorthand name.

Shorthand value.

Whether the property has "!important" annotation (implies false if absent).

Start line of range.

Start column of range (inclusive).

End line of range

End column of range (exclusive).

The css style sheet identifier.

The range of the style text in the enclosing stylesheet.

New style text.

Value text.

Value range in the underlying resource (if available).

Specificity of the selector.

Returns whether or not this node is being rendered with base appearance, which happens when it has its appearance property set to base/base-select or it is in the subtree of an element being rendered with base appearance.

Container query text.

The associated rule header range in the enclosing stylesheet (if available).

Identifier of the stylesheet containing this object (if exists).

Optional name for the container.

Optional physical axes queried for the container.

Optional logical axes queried for the container.

true if the query contains scroll-state() queries.

true if the query contains anchored() queries.

Layer name.

The associated rule header range in the enclosing stylesheet (if available).

Identifier of the stylesheet containing this object (if exists).

Layer name.

Direct sub-layers

Layer order. The order determines the order of the layer in the cascade order. A higher number has higher priority in the cascade order.

Scope rule text.

The associated rule header range in the enclosing stylesheet (if available).

Identifier of the stylesheet containing this object (if exists).

The associated rule header range in the enclosing stylesheet (if available).

Identifier of the stylesheet containing this object (if exists).

Supports rule text.

Whether the supports condition is satisfied.

The associated rule header range in the enclosing stylesheet (if available).

Identifier of the stylesheet containing this object (if exists).

The a component, which represents the number of ID selectors.

The b component, which represents the number of class selectors, attributes selectors, and pseudo-classes.

The c component, which represents the number of type selectors and pseudo-elements.