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Topic_CSS/Topic_HTML/Topic_JavaScript/Topic_Prompt/Topic_Comfyui 등 기존 카테고리 폴더를 정리하고, Topic_Graphic/Dev 등 신규 산출물과 Topics 내부 세션/메모리 기록을 동기화.
71 lines
4.3 KiB
Markdown
71 lines
4.3 KiB
Markdown
---
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id: w3css-case
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title: "W3CSS Case Study"
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category: "Programming_Language"
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status: "draft"
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verification_status: "conceptual"
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canonical_id: ""
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aliases: ["case study", "building a website from scratch", "W3.CSS 사례 연구"]
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duplicate_of: ""
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source_trust_level: "B"
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confidence_score: 0.85
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created_at: 2026-07-04
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updated_at: 2026-07-04
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review_reason: ""
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merge_history: []
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tags: ["w3css", "css-framework", "w3schools", "case-study", "responsive-design"]
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raw_sources: ["https://www.w3schools.com/w3css/w3css_case.asp"]
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applied_in: []
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github_commit: ""
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---
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# [[W3CSS Case Study]]
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## 🎯 한 줄 통찰 (One-line insight)
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The source explicitly states "it does not matter for W3.CSS if you use `<div>` or `<header>`" — meaning every layout/color/size class taught throughout the tutorial works identically regardless of whether the developer chooses generic `<div>`s or HTML5 semantic elements (`<header>`, `<footer>`), so semantic markup is purely a developer preference with zero framework-level consequence. [S1]
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## 🧠 핵심 개념 (Core concepts)
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- **Incremental build order** — the case study deliberately layers concepts in sequence: plain HTML → wrap in `w3-container` → add color classes → add size classes → optionally swap to semantic elements → build a multicolumn grid → add navigation. [S1]
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- **`w3-row-padding` + fraction classes** — the standard recipe for a responsive multicolumn layout: wrap columns in `w3-row-padding`, then use `w3-third`/`w3-quarter`/`w3-half` etc. inside. [S1]
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- **Asymmetric column widths** — combining `w3-quarter` + `w3-half` + `w3-quarter` in one row produces a wider center column flanked by two narrower side columns, all still summing to a full row. [S1]
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- **Framework-agnostic semantics** — `<div class="w3-container">` and `<header class="w3-container">` behave identically; W3.CSS classes attach to any element type. [S1]
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## 📖 세부 내용 (Details)
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- Minimal starting page: `<!DOCTYPE html><html lang="en"><title>W3.CSS Case</title><meta name="viewport" content="width=device-width, initial-scale=1"><link rel="stylesheet" href="https://www.w3schools.com/w3css/5/w3.css"><body><h1>My first W3.CSS website!</h1>...</body></html>`. [S1]
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- Semantic equivalent of the same containers: `<header class="w3-container w3-light-grey"><h1 class="w3-jumbo">...</h1></header>...<footer class="w3-container"><p>This is my footer</p></footer>`. [S1]
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- Three-column asymmetric layout: `<div class="w3-row-padding"><div class="w3-quarter">...</div><div class="w3-half">...</div><div class="w3-quarter">...</div></div>`. [S1]
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## ⚖️ 모순 및 업데이트 (Contradictions & updates)
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- **div와 시맨틱 요소의 완전한 동등성**: "W3.CSS 입장에서는 div를 쓰든 header를 쓰든 상관없다"는 문장으로 시맨틱 마크업 선택이 순수히 개발자 취향임이 명시적으로 확인됨. [S1]
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## 🛠️ 적용 사례 (Applied in summary)
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현재 발견된 실제 적용 사례가 없습니다 — 이 챕터 자체가 지금까지 배운 모든 개념(컨테이너/색상/사이즈/그리드/네비게이션)을 실제 웹사이트 하나로 조립하는 종합 실전 사례다. [S1]
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## 💻 코드 패턴 (Code patterns)
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Asymmetric three-column responsive layout — wider center column (HTML/CSS):
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```html
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<div class="w3-row-padding">
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<div class="w3-quarter"><p>Left column</p></div>
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<div class="w3-half"><p>Wider center column</p></div>
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<div class="w3-quarter"><p>Right column</p></div>
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</div>
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```
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## ✅ 검증 상태 및 신뢰도
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- **상태:** draft
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- **검증 단계:** conceptual
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- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
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- **신뢰 점수:** 0.85
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- **중복 검사 결과:** 신규 생성 (New discovery)
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## 🔗 지식 그래프 (Knowledge Graph)
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- **상위/루트:** [[W3.CSS Tutorial]]
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- **관련 개념:** [[W3CSS Containers]], [[W3CSS Rows]], [[W3CSS Trends]], [[W3CSS Material]]
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- **참조 맥락:** 처음부터 웹사이트를 만드는 종합 실습 챕터 — 머티리얼 디자인(Material) 챕터로 이어짐.
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## 📚 출처 (Sources)
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- [S1] W3Schools — W3.CSS Case Study — https://www.w3schools.com/w3css/w3css_case.asp
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## 📝 변경 이력 (Change history)
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- 2026-07-04: Initial draft synthesized from the W3Schools "W3.CSS Case Study" page (Astra wiki-curation, P-Reinforce v3.1 format).
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