CSS Custom Properties for Cascading Variables Module Level 1
E662778
CSS Custom Properties for Cascading Variables Module Level 1 is a W3C CSS specification that standardizes the use of custom properties (often called CSS variables) to enable reusable, dynamically cascading values in stylesheets.
All labels observed (2)
| Label | Occurrences |
|---|---|
| CSS Custom Properties Level 1 | 1 |
| CSS Custom Properties for Cascading Variables Module Level 1 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7420734 — 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: CSS Custom Properties for Cascading Variables Module Level 1 Context triple: [W3C CSS specifications, includes, CSS Custom Properties for Cascading Variables Module Level 1]
-
A.
CSS Logical Properties and Values Module
CSS Logical Properties and Values Module is a W3C CSS specification that defines flow-relative, writing-mode–aware properties and values to enable more flexible, internationalized page layouts.
-
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.
CSS Values and Units Module
The CSS Values and Units Module is a core CSS specification that defines the common data types, units, and value syntax used across other CSS modules.
-
D.
CSS Basic User Interface Module Level 3
CSS Basic User Interface Module Level 3 is a W3C specification that defines user interface–related CSS features such as box sizing, outlines, cursor properties, and UI states for web content.
-
E.
CSS Level 3 modules
CSS Level 3 modules are a collection of W3C specifications that extend and refine Cascading Style Sheets by defining advanced layout, styling, and presentation features for the 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: CSS Custom Properties for Cascading Variables Module Level 1 Target entity description: CSS Custom Properties for Cascading Variables Module Level 1 is a W3C CSS specification that standardizes the use of custom properties (often called CSS variables) to enable reusable, dynamically cascading values in stylesheets.
-
A.
CSS Logical Properties and Values Module
CSS Logical Properties and Values Module is a W3C CSS specification that defines flow-relative, writing-mode–aware properties and values to enable more flexible, internationalized page layouts.
-
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.
CSS Values and Units Module
The CSS Values and Units Module is a core CSS specification that defines the common data types, units, and value syntax used across other CSS modules.
-
D.
CSS Basic User Interface Module Level 3
CSS Basic User Interface Module Level 3 is a W3C specification that defines user interface–related CSS features such as box sizing, outlines, cursor properties, and UI states for web content.
-
E.
CSS Level 3 modules
CSS Level 3 modules are a collection of W3C specifications that extend and refine Cascading Style Sheets by defining advanced layout, styling, and presentation features for the web.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
W3C CSS specification
ⓘ
technical standard ⓘ |
| abbreviation | CSS Custom Properties Level 1 ⓘ |
| allows |
custom properties in any CSS rule
ⓘ
custom properties on any element ⓘ |
| constrains | custom property names to start with two dashes ⓘ |
| definesBehavior |
animation behavior of custom properties
ⓘ
cascading of custom properties ⓘ computed value of custom properties ⓘ inheritance of custom properties ⓘ inheritance of custom properties by default ⓘ interaction of custom properties with !important ⓘ interaction of custom properties with inheritance ⓘ interaction of custom properties with the cascade ⓘ interaction of custom properties with the initial value ⓘ scope of custom properties within the DOM tree ⓘ serialization of custom properties ⓘ use of custom properties in shorthand properties via var() ⓘ |
| definesConcept |
CSS custom properties
ⓘ
CSS variables ⓘ |
| definesSyntax |
case-sensitive custom property names
ⓘ
custom property names starting with -- ⓘ fallback values in var() ⓘ use of custom properties in any declaration block ⓘ var() function ⓘ |
| definesTerm |
cascading variable
ⓘ
custom property declaration ⓘ custom property name ⓘ custom property value ⓘ |
| editorialGroup | W3C CSS Working Group ⓘ |
| enables |
context-dependent styling using the cascade
ⓘ
dynamic theming via CSS ⓘ reusable values in stylesheets ⓘ sharing values across multiple CSS properties ⓘ |
| partOf | Cascading Style Sheets (CSS) ⓘ |
| publishedBy | World Wide Web Consortium ⓘ |
| relatedTo |
CSS Cascading and Inheritance Module Level 3
ⓘ
linked to:
CSS Cascade and Inheritance Module
CSS Values and Units Module Level 3 ⓘ
linked to:
CSS Values and Units Module
|
| specifies |
how custom properties are inherited
ⓘ
how custom properties are resolved at computed-value time ⓘ how custom properties participate in the cascade ⓘ how invalid at computed-value-time values are handled ⓘ |
| status | W3C Recommendation ⓘ |
| useCase |
design tokens in CSS
ⓘ
runtime updates of styles via JavaScript ⓘ sharing layout constants ⓘ theme switching ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: CSS Custom Properties for Cascading Variables Module Level 1 Description of subject: CSS Custom Properties for Cascading Variables Module Level 1 is a W3C CSS specification that standardizes the use of custom properties (often called CSS variables) to enable reusable, dynamically cascading values in stylesheets.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
CSS Custom Properties for Cascading Variables Module Level 1
→
abbreviation
→
CSS Custom Properties Level 1
ⓘ
linked to: CSS Custom Properties for Cascading Variables Module Level 1