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W3Schools 튜토리얼을 P-Reinforce v3.1 포맷으로 위키화(영어 본문, 한/영 섹션 헤더). - Topic_HTML: 59문서 (튜토리얼+예제, 레퍼런스/메타 제외) - Topic_CSS: 190문서 (메인 + Advanced/Flexbox/Grid/RWD 전체) - Topic_JavaScript: 120문서 (코어 언어; Temporal/DOM상세/BOM/WebAPI/AJAX/jQuery/Graphics 등은 후속) 각 폴더 00_INDEX.md(MOC) 포함. 코드 verbatim, 미확인분은 "Not found in source" 표기. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
115 lines
4.2 KiB
Markdown
115 lines
4.2 KiB
Markdown
---
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id: css-object-position
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title: "CSS object-position"
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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: ["object-position", "image positioning", "x/y image position", "object-fit position", "content box position"]
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duplicate_of: ""
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source_trust_level: "B"
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confidence_score: 0.89
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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", "object-position", "images", "video"]
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raw_sources: ["https://www.w3schools.com/css/css3_object-position.asp"]
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applied_in: []
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github_commit: ""
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---
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# [[CSS object-position]]
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## 🎯 한 줄 통찰 (One-line insight)
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The CSS `object-position` property is used together with `object-fit` to specify how an `<img>` or `<video>` should be positioned with x/y coordinates within its container. [S1]
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## 🧠 핵심 개념 (Core concepts)
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- **Purpose** — `object-position` positions an `<img>` or `<video>` with x/y coordinates within its container, used together with `object-fit`. [S1]
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- **First value = x-axis, second value = y-axis.** [S1]
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- **Value forms** — strings (`left`, `center`, `right`) or numbers (`px` or `%`). [S1]
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- **Negative values** are permitted. [S1]
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## 🧩 추출된 패턴 (Extracted patterns)
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- **Reframe a cropped image** — when `object-fit: cover;` crops an image, use `object-position` to choose which part of the image stays visible. [S1]
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- **x/y pair** — supply two values: the first shifts horizontally, the second shifts vertically. [S1]
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## 📖 세부 내용 (Details)
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**What it does** — The CSS `object-position` property is used together with the `object-fit` property to specify how an `<img>` or `<video>` should be positioned with x/y coordinates within its container. [S1]
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The first value controls the x-axis and the second value controls the y-axis. Values can be strings (`left`, `center`, `right`) or numbers (`px` or `%`), and negative values are allowed. [S1]
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**Example 1 — position to center a building** [S1]
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```css
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.image-container {
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width: 200px;
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height: 300px;
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border: 1px solid black;
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}
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.image-container img {
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width: 100%;
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height: 100%;
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object-fit: cover;
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object-position: 80% 100%;
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}
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```
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**Example 2 — reposition to center the Eiffel Tower** [S1]
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```css
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.image-container {
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width: 200px;
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height: 300px;
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border: 1px solid black;
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}
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.image-container img {
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width: 100%;
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height: 100%;
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object-fit: cover;
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object-position: 15% 100%;
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}
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```
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**Related properties** [S1]
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| Property | Description |
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|---|---|
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| `object-fit` | Specifies how an `<img>` or `<video>` should be resized to fit its container |
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| `object-position` | Specifies how an `<img>` or `<video>` should be positioned with x/y coordinates inside its "own content box" |
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## 🛠️ 적용 사례 (Applied in summary)
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The page's own examples are the applied cases: a cropped (`object-fit: cover`) image re-framed via `object-position: 80% 100%` and `object-position: 15% 100%` to keep different subjects in view. No external project/commit applications found in the source.
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## 💻 코드 패턴 (Code patterns)
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Re-frame a cover-cropped image with x/y coordinates (language: CSS):
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```css
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.image-container img {
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width: 100%;
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height: 100%;
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object-fit: cover;
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object-position: 80% 100%;
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}
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```
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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:** 0.89
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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 Object Fit]], [[CSS Image Shapes]], [[CSS Images]]
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- **참조 맥락:** Referenced when an `object-fit: cover` crop hides the important subject and must be re-framed.
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## 📚 출처 (Sources)
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- [S1] W3Schools — CSS object-position — https://www.w3schools.com/css/css3_object-position.asp
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## 📝 변경 이력 (Change history)
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- 2026-06-23: Initial draft synthesized from the W3Schools "CSS object-position" page (Astra wiki-curation, P-Reinforce v3.1 format).
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