CSS Containment Module Level 1
E662776
CSS Containment Module Level 1 is a W3C CSS specification that defines mechanisms for isolating a subtree of the DOM to improve rendering performance and predictability of layout, style, and paint.
All labels observed (1)
| Label | Occurrences |
|---|---|
| CSS Containment Module Level 1 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7420731 — 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 Containment Module Level 1 Context triple: [W3C CSS specifications, includes, CSS Containment Module Level 1]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
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.
- 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 Containment Module Level 1 Target entity description: CSS Containment Module Level 1 is a W3C CSS specification that defines mechanisms for isolating a subtree of the DOM to improve rendering performance and predictability of layout, style, and paint.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
CSS module
ⓘ
W3C CSS specification ⓘ |
| aimsTo |
improve predictability of layout
ⓘ
improve predictability of paint ⓘ improve predictability of style ⓘ improve rendering performance ⓘ |
| appliesTo | elements in the DOM ⓘ |
| defines | mechanisms for isolating a subtree of the DOM ⓘ |
| definesConcept |
containment box
ⓘ
containment context ⓘ layout containment ⓘ paint containment ⓘ size containment ⓘ strict containment ⓘ style containment ⓘ |
| definesKeyword |
contain: content
ⓘ
contain: inline-size ⓘ contain: layout ⓘ contain: none ⓘ contain: paint ⓘ contain: size ⓘ contain: strict ⓘ contain: style ⓘ |
| definesProperty |
contain
ⓘ
contain-intrinsic-size ⓘ content-visibility ⓘ |
| definesValue |
contain-intrinsic-size: <length>
ⓘ
contain-intrinsic-size: none ⓘ content-visibility: auto ⓘ content-visibility: hidden ⓘ content-visibility: visible ⓘ |
| definesValueType |
<contain-list>
ⓘ
<content-visibility-value> ⓘ |
| hasLevel | 1 ⓘ |
| partOf | CSS Containment specification family NERFINISHED ⓘ |
| publishedBy |
W3C
NERFINISHED
ⓘ
World Wide Web Consortium NERFINISHED ⓘ |
| relatedTo |
CSS Box Model
NERFINISHED
ⓘ
CSS Display Module Level 3 NERFINISHED ⓘ CSSOM NERFINISHED ⓘ |
| shortName | css-contain-1 NERFINISHED ⓘ |
| specifies | CSS containment features ⓘ |
| status | W3C Recommendation ⓘ |
| usedFor |
improving performance of large web pages
ⓘ
limiting the scope of layout calculations ⓘ limiting the scope of painting ⓘ limiting the scope of style recalculations ⓘ optimizing rendering of complex DOM trees ⓘ |
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 Containment Module Level 1 Description of subject: CSS Containment Module Level 1 is a W3C CSS specification that defines mechanisms for isolating a subtree of the DOM to improve rendering performance and predictability of layout, style, and paint.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.