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3.5 KiB
id, title, category, status, verification_status, canonical_id, aliases, duplicate_of, source_trust_level, confidence_score, created_at, updated_at, review_reason, merge_history, tags, raw_sources, applied_in, github_commit
| id | title | category | status | verification_status | canonical_id | aliases | duplicate_of | source_trust_level | confidence_score | created_at | updated_at | review_reason | merge_history | tags | raw_sources | applied_in | github_commit | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| w3css-containers | W3CSS Containers | Programming_Language | draft | conceptual |
|
B | 0.9 | 2026-07-04 | 2026-07-04 |
|
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W3CSS Containers
🎯 한 줄 통찰 (One-line insight)
w3-container is explicitly called "the most important" W3.CSS class precisely because it works IDENTICALLY across semantic and non-semantic elements — the source proves there's "no difference in the way W3.CSS treats <div> and <header> elements," meaning developers can freely choose semantic HTML tags without losing any W3.CSS styling behavior. [S1]
🧠 핵심 개념 (Core concepts)
w3-container— adds 16px LEFT and RIGHT padding only (no top/bottom padding by default). [S1]- Element-agnostic — works identically on
<div>,<header>,<footer>,<article>,<section>,<nav>,<blockquote>,<form>. [S1] - Equality across containers — provides common margins, paddings, alignments, fonts, and colors regardless of which tag is used. [S1]
- No vertical padding needed normally — paragraph/heading margins already simulate the visual spacing that top/bottom padding would otherwise provide. [S1]
📖 세부 내용 (Details)
- Basic container:
<div class="w3-container"><p>The w3-container class is an important w3.CSS class.</p></div>. [S1] - Semantic header equivalence:
<header class="w3-container w3-teal"><h1>Header</h1></header>behaves identically to<div class="w3-container w3-teal"><h1>Header</h1></div>. [S1] - No default vertical padding:
<div class="w3-container w3-blue">I have no top or bottom padding.</div>. [S1]
⚖️ 모순 및 업데이트 (Contradictions & updates)
- 시맨틱 태그와 div의 완전한 동등성: W3.CSS가 header/footer/article/section 등 시맨틱 태그와 div를 완전히 동일하게 취급한다는 점이 명시적으로 증명됨. [S1]
🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — header/article/footer로 구성된 전체 웹페이지 예제가 시맨틱 요소 활용의 대표 사례다. [S1]
💻 코드 패턴 (Code patterns)
Semantic elements styled identically to divs via w3-container (HTML):
<header class="w3-container w3-teal"><h1>Header</h1></header>
<article class="w3-container"><p>Content...</p></article>
<footer class="w3-container w3-teal"><h5>Footer</h5></footer>
✅ 검증 상태 및 신뢰도
- 상태: draft
- 검증 단계: conceptual
- 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
- 신뢰 점수: 0.90
- 중복 검사 결과: 신규 생성 (New discovery)
🔗 지식 그래프 (Knowledge Graph)
- 상위/루트: W3.CSS Tutorial
- 관련 개념: W3CSS Colors, W3CSS Panels, W3CSS Cards
- 참조 맥락: 가장 핵심적인 W3.CSS 클래스 — 패널(Panels) 챕터로 이어짐(마진 추가 버전).
📚 출처 (Sources)
- [S1] W3Schools — W3.CSS Containers — https://www.w3schools.com/w3css/w3css_containers.asp
📝 변경 이력 (Change history)
- 2026-07-04: Initial draft synthesized from the W3Schools "W3.CSS Containers" page (Astra wiki-curation, P-Reinforce v3.1 format).