docs(10_Wiki): W3Schools 위키화 — HTML/CSS/JavaScript(core)
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>
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id: css-grid-item-align
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title: "CSS Grid Item Align"
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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: ["justify-self", "align-self", "place-self", "grid cell alignment", "CSS Grid Items Alignment", "grid item inline block alignment"]
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duplicate_of: ""
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source_trust_level: "B"
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confidence_score: 0.86
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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", "grid", "alignment"]
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raw_sources: ["https://www.w3schools.com/css/css_grid_item_align.asp"]
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applied_in: []
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github_commit: ""
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---
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# [[CSS Grid Item Align]]
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## 🎯 한 줄 통찰 (One-line insight)
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A single grid item can be aligned within its own grid cell using `justify-self` (inline / horizontal direction) and `align-self` (block / vertical direction), with `place-self` as their shorthand — each requiring available space inside the cell to have any effect. [S1]
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## 🧠 핵심 개념 (Core concepts)
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- **`justify-self`** — used to align a grid item within its grid cell in the inline direction. [S1]
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- **`align-self`** — used to align a grid item within its grid cell in the block direction. [S1]
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- **`place-self`** — shorthand property for `align-self` and `justify-self`. [S1]
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- **Direction note (Tip)** — for pages in English, inline direction is left to right and block direction is top to bottom. [S1]
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- **Container-level equivalents** — `justify-items` and `align-items` can apply the same alignment to all grid items in a container. [S1]
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## 🧩 추출된 패턴 (Extracted patterns)
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- **Per-item override** — `justify-self`/`align-self` target a specific item (e.g. `.item1`) to override the container's default alignment. [S1]
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- **Space precondition** — for these properties to have an alignment effect, the grid item needs available space around itself in the relevant direction. [S1]
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## 📖 세부 내용 (Details)
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Grid items can be aligned within their respective grid cells using `justify-self` (horizontal alignment within a cell), `align-self` (vertical alignment within a cell), and `place-self` (shorthand for `align-self` and `justify-self`). These can also be applied to all grid items in a container using `justify-items` and `align-items` on the grid container. [S1]
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**The CSS justify-self Property**
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The `justify-self` property is used to align a grid item within its grid cell in the inline direction. Tip: for pages in English, inline direction is left to right and block direction is top to bottom. Possible values: `auto` (default), `normal`, `stretch`, `start`, `left`, `center`, `end`, `right`. For this property to have any alignment effect, the grid item needs available space around itself in the inline direction. [S1]
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Using the `justify-self` property: [S1]
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```css
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.item1 {justify-self: right;}
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.item6 {justify-self: center;}
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```
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**The CSS align-self Property**
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The `align-self` property is used to align a grid item within its grid cell in the block direction. Possible values: `auto` (default), `normal`, `stretch`, `start`, `end`, `center`. For this property to have any alignment effect, the grid item needs available space around itself in the block direction. [S1]
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Using the `align-self` property: [S1]
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```css
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.item1 {align-self: start;}
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.item6 {align-self: center;}
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```
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**The CSS place-self Property**
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`place-self` is listed as a shorthand property for `align-self` and `justify-self`. A dedicated Example box with inline source code for `place-self` was: Not found in source. [S1]
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**Properties reference table** [S1]
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| Property | Description |
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|----------|-------------|
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| `align-self` | Align a grid item within its grid cell in the block direction |
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| `justify-self` | Align a grid item within its grid cell in the inline direction |
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| `place-self` | A shorthand property for `align-self` and `justify-self` |
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## 🛠️ 적용 사례 (Applied in summary)
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The page's applied cases are per-item alignment overrides: pushing `.item1` to the right and centering `.item6` with `justify-self`, and starting `.item1` while centering `.item6` with `align-self`. No external project/commit applications found in the source.
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## 💻 코드 패턴 (Code patterns)
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Horizontal (inline) alignment of specific items (language: CSS):
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```css
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.item1 {justify-self: right;}
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.item6 {justify-self: center;}
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```
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Vertical (block) alignment of specific items:
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```css
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.item1 {align-self: start;}
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.item6 {align-self: center;}
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```
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## ⚖️ 비교 및 선택 기준 (Comparison & decision criteria)
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- Use `justify-self` for horizontal (inline-direction) alignment inside a cell; use `align-self` for vertical (block-direction) alignment. [S1]
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- Use `place-self` when you want to set both in one declaration. [S1]
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- Use `justify-items`/`align-items` on the container to set a default for every item, and `justify-self`/`align-self` on an item to override that default. [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:** 0.86 (place-self 예제 코드가 출처에 없음 — Not found in source)
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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 Grid Items]], [[CSS Grid Align]], [[CSS Grid Item Named]], [[CSS Grid Item Order]]
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- **참조 맥락:** Aligning one specific item inside its cell, as opposed to aligning the whole grid content.
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## 📚 출처 (Sources)
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- [S1] W3Schools — CSS Grid Item Align — https://www.w3schools.com/css/css_grid_item_align.asp
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## 📝 변경 이력 (Change history)
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- 2026-06-23: Initial draft synthesized from the W3Schools "CSS Grid Item Align" page (Astra wiki-curation, P-Reinforce v3.1 format).
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