CSS Will Change Module Level 1
E662777
CSS Will Change Module Level 1 is a W3C specification that defines the `will-change` property, allowing authors to hint which properties of an element are likely to change to optimize browser rendering performance.
All labels observed (1)
| Label | Occurrences |
|---|---|
| CSS Will Change Module Level 1 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7420733 — 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 Will Change Module Level 1 Context triple: [W3C CSS specifications, includes, CSS Will Change Module Level 1]
-
A.
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.
-
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 Conditional Rules Module Level 3
CSS Conditional Rules Module Level 3 is a CSS specification that defines conditional group rules like @media, @supports, and related constructs for applying styles based on conditions such as device capabilities or feature support.
-
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 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.
- 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 Will Change Module Level 1 Target entity description: CSS Will Change Module Level 1 is a W3C specification that defines the `will-change` property, allowing authors to hint which properties of an element are likely to change to optimize browser rendering performance.
-
A.
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.
-
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 Conditional Rules Module Level 3
CSS Conditional Rules Module Level 3 is a CSS specification that defines conditional group rules like @media, @supports, and related constructs for applying styles based on conditions such as device capabilities or feature support.
-
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 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.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | W3C specification ⓘ |
| aimsTo |
enable user agents to prepare optimizations in advance
ⓘ
improve smoothness of transitions ⓘ reduce jank during animations ⓘ |
| allowsAuthorsTo | hint which properties of an element are likely to change ⓘ |
| appliesTo | all elements ⓘ |
| constrains | which CSS properties may be named in will-change ⓘ |
| definesAtRuleOrFeature | CSS feature for hinting future changes ⓘ |
| definesConcept |
compositing-affecting properties
ⓘ
layout-affecting properties ⓘ paint-affecting properties ⓘ potentially expensive properties ⓘ |
| definesProperty | will-change ⓘ |
| definesValueType |
auto
ⓘ
contents ⓘ custom-ident list ⓘ scroll-position ⓘ |
| editorialGroup | CSS Working Group NERFINISHED ⓘ |
| focusesOn |
browser rendering performance
ⓘ
performance optimization ⓘ rendering optimization ⓘ |
| governs | how authors declare likely future changes to elements ⓘ |
| hasPropertySyntax | will-change: auto | scroll-position | contents | <custom-ident># ⓘ |
| language | English ⓘ |
| media | visual ⓘ |
| moduleLevel | 1 ⓘ |
| partOf |
CSS
NERFINISHED
ⓘ
Cascading Style Sheets NERFINISHED ⓘ |
| propertyName | will-change ⓘ |
| publishedBy |
W3C
NERFINISHED
ⓘ
World Wide Web Consortium NERFINISHED ⓘ |
| relatedTo |
CSS Animations Module
NERFINISHED
ⓘ
CSS Compositing and Blending Module NERFINISHED ⓘ CSS Transforms Module NERFINISHED ⓘ CSS Transitions Module NERFINISHED ⓘ |
| specifies | CSS will-change property NERFINISHED ⓘ |
| specifiesBehavior |
how user agents may ignore unsupported will-change values
ⓘ
how will-change can trigger creation of a new containing block ⓘ how will-change can trigger creation of a new stacking context ⓘ how will-change interacts with stacking contexts ⓘ |
| status | W3C Candidate Recommendation NERFINISHED ⓘ |
| url | https://www.w3.org/TR/css-will-change-1/ ⓘ |
| usedWith |
HTML elements
ⓘ
SVG elements ⓘ |
| warning |
authors should remove will-change when no longer needed
ⓘ
overuse of will-change can harm performance ⓘ |
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 Will Change Module Level 1 Description of subject: CSS Will Change Module Level 1 is a W3C specification that defines the `will-change` property, allowing authors to hint which properties of an element are likely to change to optimize browser rendering performance.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.