Acid2 test
E242841
The Acid2 test is a web standards compliance test designed to reveal flaws in web browser rendering engines by using a complex, precisely specified visual layout.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Acid2 test canonical | 3 |
| Acid2 browser test | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2175152 — 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: Acid2 test Context triple: [Ian Hickson, knownFor, Acid2 test]
-
A.
Acid Brass
Acid Brass is an art and music project by Jeremy Deller in which traditional British brass bands perform acid house and rave tracks, exploring the intersection of working-class culture and electronic music.
-
B.
Acid Tongue
Acid Tongue is a 2008 solo album by American singer-songwriter Jenny Lewis that blends indie rock, folk, and country influences with confessional, narrative-driven lyrics.
-
C.
Sherbert test
The Sherbert test is a U.S. constitutional law standard that evaluates whether government actions improperly burden an individual's free exercise of religion by requiring a compelling interest pursued through the least restrictive means.
-
D.
Acid Eaters
Acid Eaters is a 1993 studio album by the Ramones consisting entirely of cover versions of 1960s rock songs.
-
E.
E Test Complex
E Test Complex is a rocket engine testing facility located at NASA’s Stennis Space Center, used for evaluating and validating propulsion systems.
- 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: Acid2 test Target entity description: The Acid2 test is a web standards compliance test designed to reveal flaws in web browser rendering engines by using a complex, precisely specified visual layout.
-
A.
Acid Brass
Acid Brass is an art and music project by Jeremy Deller in which traditional British brass bands perform acid house and rave tracks, exploring the intersection of working-class culture and electronic music.
-
B.
Acid Tongue
Acid Tongue is a 2008 solo album by American singer-songwriter Jenny Lewis that blends indie rock, folk, and country influences with confessional, narrative-driven lyrics.
-
C.
Sherbert test
The Sherbert test is a U.S. constitutional law standard that evaluates whether government actions improperly burden an individual's free exercise of religion by requiring a compelling interest pursued through the least restrictive means.
-
D.
Acid Eaters
Acid Eaters is a 1993 studio album by the Ramones consisting entirely of cover versions of 1960s rock songs.
-
E.
E Test Complex
E Test Complex is a rocket engine testing facility located at NASA’s Stennis Space Center, used for evaluating and validating propulsion systems.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
browser test
ⓘ
software quality assurance test ⓘ web standards compliance test ⓘ |
| alsoKnownAs |
Acid2 test
ⓘ
surface form:
Acid2 browser test
|
| creator | Web Standards Project ⓘ |
| designedFor | testing web browser standards compliance ⓘ |
| designedTo | encourage browser vendors to fix standards compliance bugs ⓘ |
| developer | Web Standards Project ⓘ |
| field |
web browser rendering
ⓘ
web standards ⓘ |
| influenced | development of modern standards-compliant browsers ⓘ |
| language |
CSS
ⓘ
HTML ⓘ |
| maintainedBy | Web Standards Project ⓘ |
| name | Acid2 test self-linksurface differs ⓘ |
| notableFeature |
relies on subtle interactions of multiple web standards
ⓘ
single HTML file with embedded CSS and images ⓘ |
| predecessor | Acid1 ⓘ |
| purpose |
to reveal flaws in web browser rendering engines
ⓘ
to test support for web standards ⓘ |
| releaseDate | 2005-04-13 ⓘ |
| requires | pixel-perfect rendering to pass ⓘ |
| standardTested |
CSS
ⓘ
CSS background images ⓘ CSS borders ⓘ CSS box model ⓘ CSS margins ⓘ CSS padding ⓘ CSS Positioning Module ⓘ
surface form:
CSS positioning of replaced elements
CSS table layout interactions ⓘ HTML ⓘ PNG images ⓘ absolute positioning ⓘ content-type handling ⓘ data URLs ⓘ fixed positioning ⓘ generated content ⓘ line-height handling ⓘ object element rendering ⓘ overflow handling ⓘ z-index stacking ⓘ |
| status | historical benchmark for browser compliance ⓘ |
| successor | Acid3 ⓘ |
| testDomain | web browser layout engines ⓘ |
| testType | pass-fail visual rendering test ⓘ |
| uses | complex precisely specified visual layout ⓘ |
| visualAppearance | smiley face illustration when rendered correctly ⓘ |
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: Acid2 test Description of subject: The Acid2 test is a web standards compliance test designed to reveal flaws in web browser rendering engines by using a complex, precisely specified visual layout.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Acid2
subject surface form:
Acid2
this entity surface form:
Acid2 browser test