docs(10_Wiki): Dev 폴더 누락분 반영 — Topic_Programming으로 통합
이전 재구성 작업에서 Dev/ 폴더가 누락되었던 것을 반영. - Dev/Topic_Programming(중첩 폴더, 78개)은 Dev 자체 최상위 폴더들 (Architecture/Conventions/Engineering_Intelligence 등)과 완전 중복이라 제거. - Dev 최상위 엔지니어링 지식 폴더(Architecture/Conventions/Engineering_Intelligence/ Failure_Library/Generalized_Principles/Language/Pattern_Catalog/Platform_Guides/ Subsystems, 77개)는 이미 Topic_Programming/Topic_Programming에 더 최신 버전이 존재해 중복 제거(고유 콘텐츠 1개는 예외 처리하여 이동 보존). - Dev의 W3Schools 언어 튜토리얼 폴더(Topic_C/CPP/CSS/CSharp/HOWTO/HTML/Java/ JavaScript/PHP/Python/SQL/W3CSS, 1201개)는 전부 Topic_Programming 하위로 이동. - 에이전트 운영 상태(.astra/docs)는 그대로 유지, 콘텐츠 폴더만 정리. - Topic_Programming 최종 문서 수: 2784 → 3985.
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Antigravity Agent
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id: css-position-offsets
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title: "CSS Position Offsets"
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category: "Frontend"
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status: "draft"
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verification_status: "conceptual"
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canonical_id: ""
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aliases: ["position offsets", "top right bottom left", "CSS offsets", "positioned element offsets", "edge properties", "offset properties"]
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duplicate_of: ""
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source_trust_level: "B"
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confidence_score: 0.87
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created_at: 2026-06-23
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updated_at: 2026-06-23
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review_reason: ""
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merge_history: []
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tags: ["css", "web", "frontend", "w3schools", "position", "layout"]
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raw_sources: ["https://www.w3schools.com/css/css_position_offset.asp"]
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applied_in: []
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github_commit: ""
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---
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# [[CSS Position Offsets]]
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## 🎯 한 줄 통찰 (One-line insight)
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The `top`, `right`, `bottom`, and `left` properties position elements — but they only take effect on positioned elements (those with `position` set to `relative`, `absolute`, `fixed`, or `sticky`). [S1]
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## 🧠 핵심 개념 (Core concepts)
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- **offset properties** — `top`, `right`, `bottom`, and `left` are used to position elements. [S1]
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- **only on positioned elements** — these properties only work on positioned elements, i.e. elements with `position` set to `relative`, `absolute`, `fixed`, or `sticky`. [S1]
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- **margin-edge semantics** — each offset sets the corresponding margin edge for a positioned box (top/right/bottom/left margin edge). [S1]
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## 🧩 추출된 패턴 (Extracted patterns)
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- **Positioned + offset** — set a `position` value other than `static` first, then use offset properties to move the element; offsets are ignored on static elements. [S1]
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- **Corner/center placement** — use combinations of offsets on an absolutely positioned element to place text at an image's corners or center. [S1]
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## 📖 세부 내용 (Details)
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**Positioning with top, right, bottom, and left** [S1]
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The `top`, `right`, `bottom`, and `left` properties are used to position elements. These properties only work on **positioned elements** (elements with `position` set to `relative`, `absolute`, `fixed`, or `sticky`).
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**Positioning Text On an Image** [S1]
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This section demonstrates practical application with an example showing text positioned at various corners and center of an image. The page provides five interactive "Try it Yourself" examples: Top Left, Top Right, Bottom Left, Bottom Right, and Centered. The exact verbatim CSS for each variant was not provided in the fetched source — Not found in source.
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**CSS Positioning Properties Reference Table** [S1]
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| Property | Description |
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|----------|-------------|
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| bottom | Sets the bottom margin edge for a positioned box |
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| clip | Clips an absolutely positioned element |
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| left | Sets the left margin edge for a positioned box |
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| position | Specifies the type of positioning for an element |
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| right | Sets the right margin edge for a positioned box |
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| top | Sets the top margin edge for a positioned box |
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## 🛠️ 적용 사례 (Applied in summary)
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The page's applied example is positioning text at the corners and center of an image using offset properties on positioned elements. No external project/commit applications found in the source.
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## 💻 코드 패턴 (Code patterns)
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General shape — offsets only apply once an element is positioned (language: CSS):
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```css
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selector {
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position: absolute; /* or relative, fixed, sticky */
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top: 0;
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right: 0;
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bottom: 0;
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left: 0;
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}
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```
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Note: this skeleton illustrates the rule that offsets require a non-static `position`; the page did not provide verbatim per-corner example code — Not found in source. [S1]
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## ⚖️ 모순 및 업데이트 (Contradictions & updates)
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No contradictions found in the source.
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## ✅ 검증 상태 및 신뢰도
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- **상태:** draft
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- **검증 단계:** conceptual (실제 적용 사례 발견 시 applied/validated로 승격 가능)
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- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
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- **신뢰 점수:** 0.87
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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:** [[CSS Tutorial]]
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- **관련 개념:** [[CSS Position Fixed and Absolute]], [[CSS Position Sticky]], [[CSS Z-index]]
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- **참조 맥락:** Referenced whenever a positioned element must be moved using top/right/bottom/left offsets.
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## 📚 출처 (Sources)
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- [S1] W3Schools — CSS Position Offsets — https://www.w3schools.com/css/css_position_offset.asp
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## 📝 변경 이력 (Change history)
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- 2026-06-23: Initial draft synthesized from the W3Schools "CSS Position Offsets" page (Astra wiki-curation, P-Reinforce v3.1 format).
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