docs(10_Wiki): 위키 구조 정리 — 언어 튜토리얼 카테고리 폴더 제거 + 신규 자산 동기화

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.
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+---
+id: w3css-navigation
+title: "W3CSS Navigation"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["navigation bars", "w3-top", "w3-bottom", "W3.CSS 네비게이션 바"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.87
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["w3css", "css-framework", "w3schools", "navbar"]
+raw_sources: ["https://www.w3schools.com/w3css/w3css_navigation.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[W3CSS Navigation]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Padding on the navbar CONTAINER versus padding on each INDIVIDUAL link produces visually similar layouts but behaviorally different hover feedback — the source explicitly warns that container-level padding means links "do not get full padding on hover," revealing that hover-affordance area is determined by which element actually owns the padding, not just how the bar looks at rest. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **`w3-bar` fundamentals reused** — this chapter is `w3-bar`/`w3-bar-item`/`w3-bar-block` applied specifically to navigation, plus `w3-sidebar` as a preview of the next chapter. [S1]
+- **`w3-hover-none` + `w3-hover-text-*`** — disables the default grey hover background and switches to a text-color-only hover effect instead. [S1]
+- **Padding placement matters for hover** — `w3-padding-16` on each link gives full-padding hover feedback; the same padding on the parent bar does not. [S1]
+- **`w3-top` / `w3-bottom`** — wrapping a bar in a div with this class fixes it to the viewport top/bottom, persisting through scroll. [S1]
+- **Collapsing pattern** — replacing a full navbar with a single hamburger button (☰) on small screens via hide/show classes, previewing the Sidebar chapter's collapsible pattern. [S1]
+- **Icon integration** — Font Awesome `fa fa-*` classes drop directly into bar items (cross-referenced to the Icons chapter). [S1]
+
+## 📖 세부 내용 (Details)
+- Custom-width, mobile-responsive links: `<a href="#" class="w3-bar-item w3-button w3-mobile w3-green" style="width:33%">Home</a>` — combined with `w3-mobile` to become 100% width on small screens. [S1]
+- Fixed-to-viewport bar: `<div class="w3-top"><div class="w3-bar">...</div></div>`. [S1]
+- Text-only hover effect: `<a class="w3-bar-item w3-button w3-hover-none w3-text-grey w3-hover-text-white">Link 1</a>`. [S1]
+- Navbar with input + button combo: `<input type="text" class="w3-bar-item w3-input" placeholder="Search.."><a href="#" class="w3-bar-item w3-button w3-green">Go</a>`. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+- **바 전체 vs 개별 링크 패딩의 호버 차이**: 바 컨테이너에 패딩을 주면 개별 링크가 호버 시 전체 패딩 영역을 갖지 못한다는 점이 원문에서 명시적으로 경고됨. [S1]
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — w3-top으로 상단 고정 네비게이션 바를 만들고 작은 화면에서 햄버거 버튼으로 축소하는 조합이 실전 반응형 웹사이트 헤더의 대표 패턴이다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Fixing a navigation bar to the top of the viewport (HTML/CSS):
+```html
+<div class="w3-top">
+  <div class="w3-bar w3-black">
+    <a href="#" class="w3-bar-item w3-button">Home</a>
+    <a href="#" class="w3-bar-item w3-button">Link 1</a>
+  </div>
+</div>
+```
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual
+- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
+- **신뢰 점수:** 0.87
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[W3.CSS Tutorial]]
+- **관련 개념:** [[W3CSS Bars]], [[W3CSS Dropdowns]], [[W3CSS Icons]], [[W3CSS Sidebar]]
+- **참조 맥락:** 수평 네비게이션 바 종합 챕터 — 수직 사이드바(Sidebar) 챕터로 직접 이어짐.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — W3.CSS Navigation Bars — https://www.w3schools.com/w3css/w3css_navigation.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "W3.CSS Navigation Bars" page (Astra wiki-curation, P-Reinforce v3.1 format).