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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>
111 lines
4.4 KiB
Markdown
111 lines
4.4 KiB
Markdown
---
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id: css-navigation-bar
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title: "CSS Navigation Bar"
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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: ["navbar", "navigation bar", "nav menu", "list of links", "site navigation"]
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duplicate_of: ""
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source_trust_level: "B"
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confidence_score: 0.88
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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", "navbar", "navigation"]
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raw_sources: ["https://www.w3schools.com/css/css_navbar.asp"]
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applied_in: []
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github_commit: ""
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---
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# [[CSS Navigation Bar]]
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## 🎯 한 줄 통찰 (One-line insight)
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A navigation bar is fundamentally a list of links built from `<ul>`/`<li>` elements, then stripped of its default bullets, margins, and padding so CSS can style it into a navbar. [S1]
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## 🧠 핵심 개념 (Core concepts)
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- **What it is** — a navigation bar is an important web-design component that helps users navigate between sections of a website. [S1]
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- **Built from lists** — navbars are typically built with HTML list elements (`<ul>` and `<li>`) and then styled with CSS. [S1]
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- **Placement** — navigation bars are typically located at the top or side of a webpage. [S1]
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- **Navbar = list of links** — since a navbar is basically a list of links, `<ul>` and `<li>` are a natural fit. [S1]
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## 🧩 추출된 패턴 (Extracted patterns)
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- **Reset the list** — `list-style-type: none; margin: 0; padding: 0;` removes bullets and default browser spacing, giving a clean base for styling. [S1]
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- **Shared base** — the same HTML+CSS base is reused for both vertical and horizontal navbars. [S1]
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## 📖 세부 내용 (Details)
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**Introduction** [S1]
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A navigation bar is an important component of web design. Navigation bars help users navigate between different sections of a website. They are typically built with HTML list elements (`<ul>` and `<li>`), then styled with CSS. Navigation bars are typically located at the top or side of a webpage.
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**Navigation Bar = List of Links** [S1]
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A navigation bar is basically a list of links, so using the HTML `<ul>` and `<li>` elements makes perfect sense:
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```html
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<ul>
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<li><a href="default.asp">Home</a></li>
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<li><a href="news.asp">News</a></li>
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<li><a href="contact.asp">Contact</a></li>
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<li><a href="about.asp">About</a></li>
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</ul>
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```
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Then strip the list of its default styling:
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```css
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ul {
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list-style-type: none;
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margin: 0;
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padding: 0;
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}
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```
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**Example explained** [S1]
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- `list-style-type: none;` — Removes the bullet points from the list
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- `margin: 0;` — Resets default browser margins
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- `padding: 0;` — Resets default browser paddings
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**Note** [S1]
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The HTML and CSS code in the example above is the base code used for both vertical and horizontal navigation bars, which are covered in the next chapters.
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## 🛠️ 적용 사례 (Applied in summary)
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The page's applied example is the four-link `<ul>` (Home / News / Contact / About) reset with `list-style-type: none; margin: 0; padding: 0;` — the shared base for the vertical and horizontal navbar pages. No external project/commit applications found in the source.
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## 💻 코드 패턴 (Code patterns)
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Link list (language: HTML):
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```html
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<ul>
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<li><a href="default.asp">Home</a></li>
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<li><a href="news.asp">News</a></li>
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<li><a href="contact.asp">Contact</a></li>
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<li><a href="about.asp">About</a></li>
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</ul>
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```
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List reset (language: CSS):
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```css
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ul {
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list-style-type: none;
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margin: 0;
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padding: 0;
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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:** 0.88
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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 Vertical Navbar]], [[CSS Horizontal Navbar]], [[CSS Lists]], [[CSS Links]]
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- **참조 맥락:** The base chapter referenced before building any vertical or horizontal navigation bar.
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## 📚 출처 (Sources)
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- [S1] W3Schools — CSS Navigation Bar — https://www.w3schools.com/css/css_navbar.asp
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## 📝 변경 이력 (Change history)
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- 2026-06-23: Initial draft synthesized from the W3Schools "CSS Navigation Bar" page (Astra wiki-curation, P-Reinforce v3.1 format).
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