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: css-rwd-intro
+title: "CSS RWD Intro"
+category: "Frontend"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["responsive web design", "RWD", "responsive design intro", "mobile friendly design", "responsive layout", "RWD introduction"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.85
+created_at: 2026-06-23
+updated_at: 2026-06-23
+review_reason: ""
+merge_history: []
+tags: ["css", "web", "frontend", "w3schools", "responsive", "rwd"]
+raw_sources: ["https://www.w3schools.com/css/css_rwd_intro.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[CSS RWD Intro]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Responsive web design is about creating web pages that look good on all devices, using HTML and CSS to automatically resize, hide, shrink, or enlarge a website so it adapts to desktops, tablets, and mobile phones. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **Responsive web design** — about creating web pages that look good on all devices. [S1]
+- **HTML + CSS** — RWD uses HTML and CSS to automatically resize, hide, shrink, or enlarge a website, to make it look good on all devices. [S1]
+- **Device coverage** — targets desktops, tablets, and mobile phones. [S1]
+- **Essential elements** — the viewport `<meta>` tag, flexible layout (grid and flex), and media queries. [S1]
+
+## 🧩 추출된 패턴 (Extracted patterns)
+- **Adapt, do not duplicate** — one set of HTML/CSS resizes and rearranges itself per device, rather than maintaining separate sites. [S1]
+- **Three-pillar foundation** — the viewport meta tag, a flexible layout (grid/flex), and media queries together enable responsiveness. [S1]
+
+## 📖 세부 내용 (Details)
+Responsive web design is about creating web pages that look good on all devices. Responsive design involves using HTML and CSS to automatically resize, hide, shrink, or enlarge a website, to make it look good on all devices. [S1]
+
+The page identifies three essential RWD elements: the viewport `<meta>` tag, a flexible layout (grid and flex), and media queries. It also references three device categories — desktops, tablets, and mobile phones — with accompanying device illustrations. [S1]
+
+**RWD tutorial chapters** [S1]
+- RWD Intro
+- RWD Viewport
+- RWD Grid View
+- RWD Media Queries
+- RWD Images
+- RWD Videos
+- RWD Frameworks
+- RWD Templates
+
+**Code examples:** No inline CSS/HTML code snippets appear in this introductory page; demonstrations are referenced only as "Try it Yourself" interactive examples. Inline source code: Not found in source. [S1]
+
+## 🛠️ 적용 사례 (Applied in summary)
+This is an introductory overview chapter; it lists the topics the RWD tutorial will cover (viewport, grid view, media queries, images, videos, frameworks, templates) rather than presenting an applied implementation. No external project/commit applications found in the source.
+
+## 💻 코드 패턴 (Code patterns)
+Not found in source — the RWD introduction page presents no inline code; concrete code patterns appear in the later RWD chapters (Viewport, Grid View, Media Queries). [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+No contradictions found in the source.
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual (실제 적용 사례 발견 시 applied/validated로 승격 가능)
+- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
+- **신뢰 점수:** 0.85 (개요 페이지 — 인라인 코드 없음, Not found in source)
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[CSS Tutorial]]
+- **관련 개념:** [[CSS Grid 12-column Layout]], [[CSS @supports]], [[CSS Grid Align]]
+- **참조 맥락:** The entry point to the responsive web design track, preceding viewport, grid-view, and media-query chapters.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — CSS RWD Intro — https://www.w3schools.com/css/css_rwd_intro.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-06-23: Initial draft synthesized from the W3Schools "CSS RWD Intro" page (Astra wiki-curation, P-Reinforce v3.1 format).