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>
This commit is contained in:
2026-06-23 19:21:18 +09:00
parent 8957890d13
commit 9609c04755
379 changed files with 54618 additions and 6 deletions
+151
View File
@@ -0,0 +1,151 @@
---
id: css-grid-item-named
title: "CSS Grid Item Named"
category: "Frontend"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["grid-area name", "grid-template-areas", "named grid items", "CSS Naming Grid Items", "webpage template grid", "grid area template"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.9
created_at: 2026-06-23
updated_at: 2026-06-23
review_reason: ""
merge_history: []
tags: ["css", "web", "frontend", "w3schools", "grid", "layout"]
raw_sources: ["https://www.w3schools.com/css/css_grid_item_name.asp"]
applied_in: []
github_commit: ""
---
# [[CSS Grid Item Named]]
## 🎯 한 줄 통찰 (One-line insight)
Naming grid items with `grid-area` and arranging those names inside `grid-template-areas` (each row in apostrophes, names separated by spaces, a period for unnamed cells) lets you describe a whole page layout as a readable visual map. [S1]
## 🧠 핵심 개념 (Core concepts)
- **`grid-template-areas`** — a grid container property that specifies areas within the grid layout. [S1]
- **`grid-area` naming** — you name grid items with the `grid-area` property, then reference the name in `grid-template-areas`. [S1]
- **Apostrophe rows** — each area (row) is defined within apostrophes; the named grid items in each area are listed inside the apostrophes, separated by a space. [S1]
- **Period for unnamed cells** — a period sign (`.`) refers to a grid item with no name. [S1]
- **Multiple rows** — to define two rows (two areas), define the second row inside another set of apostrophes. [S1]
## 🧩 추출된 패턴 (Extracted patterns)
- **Span by repetition** — repeating a name across several cells in a row makes that item span those columns (e.g. five times = span five columns). [S1]
- **Vertical span** — repeating a name across two apostrophe-rows makes the item span two rows. [S1]
- **Full-page template** — naming every item (header, menu, main, right, footer) and laying them out in `grid-template-areas` produces a ready-to-use webpage template. [S1]
## 📖 세부 내용 (Details)
**Naming Grid Items with grid-area**
The CSS `grid-template-areas` is a grid container property, and it specifies areas within the grid layout. You can name grid items by using the CSS `grid-area` property, and then reference the name in the `grid-template-areas` property. Each area is defined within apostrophes. The named grid items in each area are defined inside the apostrophes, separated by a space. [S1]
Let 'Item1' get the name 'myHeader', and let it span five columns in a five-columns grid layout: [S1]
```css
.container {
display: grid;
grid-template-areas: 'myHeader myHeader myHeader myHeader myHeader';
}
.item1 {
grid-area: myHeader;
}
```
We can use a period sign (`.`) to refer to a grid item with no name. Let 'myHeader' span three columns in a five-columns grid layout (a period sign represents an item with no name): [S1]
```css
.container {
display: grid;
grid-template-areas: 'myHeader myHeader myHeader . .';
}
.item1 {
grid-area: myHeader;
}
```
To define two rows (two areas), define the second row inside another set of apostrophes. Let 'myHeader' span two columns and two rows: [S1]
```css
.container {
display: grid;
grid-template-areas:
'myHeader myHeader . . .'
'myHeader myHeader . . .';
}
.item1 {
grid-area: myHeader;
}
```
**Make a ready-to-use Webpage Template**
Here, we name all grid items to make a ready-to-use webpage template: [S1]
```css
.item1 { grid-area: header; }
.item2 { grid-area: menu; }
.item3 { grid-area: main; }
.item4 { grid-area: right; }
.item5 { grid-area: footer; }
.container {
display: grid;
grid-template-areas:
'header header header header header header'
'menu main main main main right'
'menu footer footer footer footer footer';
}
```
The resulting layout shows the labeled areas Header, Menu, Main, Right, and Footer. [S1]
## 🛠️ 적용 사례 (Applied in summary)
The page's culminating applied case is the ready-to-use webpage template that names header, menu, main, right, and footer items and maps them across a six-column, three-row `grid-template-areas`. No external project/commit applications found in the source.
## 💻 코드 패턴 (Code patterns)
Name an item and reference it (language: CSS):
```css
.container {
display: grid;
grid-template-areas: 'myHeader myHeader myHeader . .';
}
.item1 {
grid-area: myHeader;
}
```
Full webpage template layout:
```css
.item1 { grid-area: header; }
.item2 { grid-area: menu; }
.item3 { grid-area: main; }
.item4 { grid-area: right; }
.item5 { grid-area: footer; }
.container {
display: grid;
grid-template-areas:
'header header header header header header'
'menu main main main main right'
'menu footer footer footer footer footer';
}
```
## ⚖️ 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:** 0.9
- **중복 검사 결과:** 신규 생성 (New discovery)
## 🔗 지식 그래프 (Knowledge Graph)
- **상위/루트:** [[CSS Tutorial]]
- **관련 개념:** [[CSS Grid Items]], [[CSS Grid Align]], [[CSS Grid 12-column Layout]]
- **참조 맥락:** Declaring readable, named page regions instead of raw line numbers.
## 📚 출처 (Sources)
- [S1] W3Schools — CSS Grid Item Named — https://www.w3schools.com/css/css_grid_item_name.asp
## 📝 변경 이력 (Change history)
- 2026-06-23: Initial draft synthesized from the W3Schools "CSS Grid Item Named" page (Astra wiki-curation, P-Reinforce v3.1 format).