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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-defaults W3CSS Defaults Programming_Language draft conceptual
w3-size classes
W3.CSS 기본값
B 0.88 2026-07-04 2026-07-04
w3css
css-framework
w3schools
defaults
typography
https://www.w3schools.com/w3css/w3css_defaults.asp

W3CSS Defaults

🎯 한 줄 통찰 (One-line insight)

W3.CSS explicitly discourages using headings for their font-SIZE and provides a completely separate w3-size class family instead — the source frames this directly: "Headings should be used for what they are: Headings," meaning <h3> should signal semantic importance, not just "medium-large text," and w3-medium/w3-large/etc. exist specifically to decouple visual size from semantic heading level. [S1]

🧠 핵심 개념 (Core concepts)

  • Accessibility-oriented base defaults — 15px font-size, Verdana font (good letter spacing), 1.5 line-height — explicitly designed to be readable even for people with mild reading disabilities. [S1]
  • Default heading sizes — h1 36px, h2 30px, h3 24px, h4 20px, h5 18px, h6 16px. [S1]
  • w3-size classesw3-tiny, w3-small, w3-medium (default), w3-large, w3-xlarge, w3-xxlarge, w3-xxxlarge, w3-jumbo — size independent of heading semantics. [S1]
  • Three override strategies — (1) override in <head> with custom CSS, (2) link your own CSS file AFTER the W3.CSS file, (3) download and directly edit the W3.CSS source file. [S1]

📖 세부 내용 (Details)

  • Default heading CSS override: h1{font-size:64px;} h2{font-size:48px;} ... placed in <head>. [S1]
  • Loading a custom CSS file after W3.CSS: <link rel="stylesheet" href="https://www.w3schools.com/w3css/5/w3.css"> <link rel="stylesheet" href="myStyle.css">. [S1]
  • Changing the default font globally: html, body, h1, h2, h3, h4, h5, h6 { font-family: cursive, sans-serif; }. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

  • 크기 클래스와 헤딩 태그의 의도적 분리: 제목 태그는 의미(heading semantics)를 위해, w3-size 클래스는 시각적 크기를 위해 사용하도록 명확히 구분됨. [S1]

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — CSS 파일을 W3.CSS 뒤에 로드해 기본값을 재정의하는 것이 커스터마이징의 표준 패턴이다. [S1]

💻 코드 패턴 (Code patterns)

Font size decoupled from heading semantics via w3-size classes (HTML):

<h3 class="w3-tiny">Small text, still a heading</h3>
<p class="w3-jumbo">Huge text, not a heading at all</p>

검증 상태 및 신뢰도

  • 상태: draft
  • 검증 단계: conceptual
  • 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
  • 신뢰 점수: 0.88
  • 중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

📚 출처 (Sources)

📝 변경 이력 (Change history)

  • 2026-07-04: Initial draft synthesized from the W3Schools "W3.CSS Defaults" page (Astra wiki-curation, P-Reinforce v3.1 format).