W3C CSS specifications

E171237

technical specification web standard specification collection

W3C CSS specifications are the official World Wide Web Consortium standards that define how Cascading Style Sheets control the presentation and layout of web content across browsers and devices.

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All labels observed (5)

Label	Occurrences
CSS specifications	3
W3C CSS specifications canonical	2
CSS specs	1
Cascading Style Sheets (CSS) specifications	1
W3C CSS specification process	1

How this entity was disambiguated

This entity first appeared as the object of triple T1490443 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: W3C CSS specifications
Context triple: [W3C markup validation tools, implementsStandard, W3C CSS specifications]

A. CSS Level 1 specification
The CSS Level 1 specification is the original World Wide Web Consortium standard that introduced Cascading Style Sheets as a way to control the presentation of HTML documents on the web.
B. CSS Cascade and Inheritance Module
The CSS Cascade and Inheritance Module is a W3C specification that defines how CSS declarations are prioritized, combined, and passed down through the document tree to determine the final computed styles of elements.
C. W3C CSS Working Group
The W3C CSS Working Group is the World Wide Web Consortium team responsible for designing and standardizing Cascading Style Sheets (CSS) for the web.
D. CSS Backgrounds and Borders Module
The CSS Backgrounds and Borders Module is a W3C CSS specification that defines advanced features for styling element backgrounds, borders, and related visual effects on the web.
E. W3C Recommendation
A W3C Recommendation is a mature, stable web standard published by the World Wide Web Consortium to promote interoperability and best practices across the World Wide Web.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: W3C CSS specifications
Target entity description: W3C CSS specifications are the official World Wide Web Consortium standards that define how Cascading Style Sheets control the presentation and layout of web content across browsers and devices.

A. CSS Level 1 specification
The CSS Level 1 specification is the original World Wide Web Consortium standard that introduced Cascading Style Sheets as a way to control the presentation of HTML documents on the web.
B. CSS Cascade and Inheritance Module
The CSS Cascade and Inheritance Module is a W3C specification that defines how CSS declarations are prioritized, combined, and passed down through the document tree to determine the final computed styles of elements.
C. W3C CSS Working Group
The W3C CSS Working Group is the World Wide Web Consortium team responsible for designing and standardizing Cascading Style Sheets (CSS) for the web.
D. CSS Backgrounds and Borders Module
The CSS Backgrounds and Borders Module is a W3C CSS specification that defines advanced features for styling element backgrounds, borders, and related visual effects on the web.
E. W3C Recommendation
A W3C Recommendation is a mature, stable web standard published by the World Wide Web Consortium to promote interoperability and best practices across the World Wide Web.
F. None of above. chosen

Statements (109)

Predicate	Object
instanceOf	technical specification ⓘ web standard specification collection ⓘ
abbreviation	CSS specs ⓘ linked to: W3C CSS specifications
appliesTo	HTML documents ⓘ MathML documents ⓘ SVG documents ⓘ XML documents ⓘ
defines	CSS UI properties ⓘ CSS animations ⓘ CSS at-rules ⓘ CSS backgrounds and borders ⓘ linked to: CSS Backgrounds and Borders Module CSS box model ⓘ CSS cascade and inheritance rules ⓘ CSS color contrast functions (in newer levels) ⓘ CSS color models ⓘ CSS containment ⓘ CSS counters ⓘ CSS custom properties ⓘ CSS environment variables (env()) ⓘ CSS filters ⓘ CSS flexbox layout ⓘ CSS fonts and text rendering ⓘ CSS fragmentation ⓘ linked to: CSS Fragmentation Module CSS grid layout ⓘ linked to: CSS Grid Layout Level 1 Editor’s Draft CSS images ⓘ linked to: CSS Images Module CSS layering and stacking context ⓘ CSS layout models ⓘ CSS line breaking rules ⓘ linked to: CSS Writing Modes Module CSS lists and markers ⓘ CSS logical properties ⓘ linked to: CSS Logical Properties and Values Module CSS masking and clipping ⓘ linked to: CSS Backgrounds and Borders Module CSS media feature queries ⓘ linked to: CSS Media Queries CSS media queries ⓘ linked to: CSS Media Queries CSS multi-column layout ⓘ linked to: CSS Multi-column Layout Module Level 1 CSS object model behavior ⓘ linked to: CSSOM View Module CSS overflow behavior ⓘ linked to: CSS Overflow Module CSS paged media ⓘ linked to: CSS Paged Media Module CSS positioning ⓘ CSS regions model (deprecated in practice) ⓘ CSS ruby layout ⓘ linked to: CSS Ruby Layout Module Level 1 CSS scroll snapping ⓘ CSS scrollbars styling ⓘ CSS selectors ⓘ CSS shapes ⓘ CSS speech properties ⓘ linked to: CSS Speech Module CSS text decoration ⓘ CSS text overflow ⓘ linked to: CSS Overflow Module CSS transforms ⓘ linked to: CSS Transforms Module CSS transitions ⓘ CSS values and units ⓘ CSS viewport units ⓘ CSS visual formatting model ⓘ CSS will-change hinting ⓘ CSS writing modes ⓘ linked to: CSS Writing Modes Module Cascading Style Sheets language ⓘ syntax for CSS ⓘ
developedBy	W3C CSS Working Group ⓘ
ensures	cross-browser interoperability for CSS features ⓘ
goal	ensure interoperable CSS implementations across browsers ⓘ separate content from presentation on the web ⓘ
governs	layout behavior across devices ⓘ visual presentation of web content ⓘ
includes	CSS Animations Module Level 1 ⓘ linked to: CSS Animations Module CSS Backgrounds and Borders Module Level 3 ⓘ linked to: CSS Backgrounds and Borders Module CSS Cascading and Inheritance Level 3 ⓘ linked to: CSS Cascade and Inheritance Module CSS Cascading and Inheritance Level 4 ⓘ linked to: CSS Cascade and Inheritance Module CSS Cascading and Inheritance Level 5 ⓘ linked to: CSS Cascade and Inheritance Module CSS Color Module Level 3 ⓘ linked to: CSS Color Module CSS Color Module Level 4 ⓘ linked to: CSS Color Module CSS Conditional Rules Module Level 3 ⓘ CSS Containment Module Level 1 ⓘ CSS Custom Properties for Cascading Variables Module Level 1 ⓘ CSS Flexible Box Layout Module Level 1 ⓘ linked to: CSS Flexbox Layout Level 1 Editor’s Draft CSS Fonts Module Level 3 ⓘ CSS Grid Layout Module Level 1 ⓘ linked to: CSS Grid Layout Level 1 Editor’s Draft CSS Multi-column Layout Module Level 1 ⓘ CSS Overflow Module Level 3 ⓘ linked to: CSS Overflow Module CSS Paged Media Module Level 3 ⓘ linked to: CSS Paged Media Module CSS Scroll Snap Module Level 1 ⓘ linked to: CSS Scroll Snap Module CSS Text Decoration Module Level 3 ⓘ linked to: CSS Text Module CSS Text Module Level 3 ⓘ linked to: CSS Text Module CSS Transforms Module Level 1 ⓘ linked to: CSS Transforms Module CSS Transitions Module Level 1 ⓘ linked to: CSS Transitions Module CSS Values and Units Module Level 3 ⓘ linked to: CSS Values and Units Module CSS Will Change Module Level 1 ⓘ CSS Writing Modes Level 3 ⓘ linked to: CSS Writing Modes Module CSS1 specification ⓘ linked to: CSS Level 1 specification CSS2.1 specification ⓘ Media Queries Level 3 ⓘ linked to: CSS Conditional Rules Module Level 3 Selectors Level 3 ⓘ Selectors Level 4 ⓘ
includesStatus	Candidate Recommendation ⓘ Proposed Recommendation ⓘ W3C Note ⓘ W3C Recommendation ⓘ Working Draft ⓘ
maintainedBy	World Wide Web Consortium ⓘ
organizedAs	CSS levels and modules ⓘ
partOf	W3C Style Activity ⓘ linked to: W3C CSS Working Group
publishedAt	https://www.w3.org/Style/CSS/specs.en.html ⓘ
relatedStandard	ARIA specifications ⓘ DOM specifications ⓘ HTML Living Standard ⓘ SVG specifications ⓘ
standardizes	presentation of web documents ⓘ
statusProcess	W3C Recommendation track ⓘ linked to: W3C Recommendation Track
usedBy	authoring tool implementers ⓘ web browser vendors ⓘ web developers ⓘ

How these facts were elicited