---
id: w3css-navigation
title: "W3CSS Navigation"
category: "Programming_Language"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["navigation bars", "w3-top", "w3-bottom", "W3.CSS 네비게이션 바"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.87
created_at: 2026-07-04
updated_at: 2026-07-04
review_reason: ""
merge_history: []
tags: ["w3css", "css-framework", "w3schools", "navbar"]
raw_sources: ["https://www.w3schools.com/w3css/w3css_navigation.asp"]
applied_in: []
github_commit: ""
---

# [[W3CSS Navigation]]

## 🎯 한 줄 통찰 (One-line insight)
Padding on the navbar CONTAINER versus padding on each INDIVIDUAL link produces visually similar layouts but behaviorally different hover feedback — the source explicitly warns that container-level padding means links "do not get full padding on hover," revealing that hover-affordance area is determined by which element actually owns the padding, not just how the bar looks at rest. [S1]

## 🧠 핵심 개념 (Core concepts)
- **`w3-bar` fundamentals reused** — this chapter is `w3-bar`/`w3-bar-item`/`w3-bar-block` applied specifically to navigation, plus `w3-sidebar` as a preview of the next chapter. [S1]
- **`w3-hover-none` + `w3-hover-text-*`** — disables the default grey hover background and switches to a text-color-only hover effect instead. [S1]
- **Padding placement matters for hover** — `w3-padding-16` on each link gives full-padding hover feedback; the same padding on the parent bar does not. [S1]
- **`w3-top` / `w3-bottom`** — wrapping a bar in a div with this class fixes it to the viewport top/bottom, persisting through scroll. [S1]
- **Collapsing pattern** — replacing a full navbar with a single hamburger button (☰) on small screens via hide/show classes, previewing the Sidebar chapter's collapsible pattern. [S1]
- **Icon integration** — Font Awesome `fa fa-*` classes drop directly into bar items (cross-referenced to the Icons chapter). [S1]

## 📖 세부 내용 (Details)
- Custom-width, mobile-responsive links: `<a href="#" class="w3-bar-item w3-button w3-mobile w3-green" style="width:33%">Home</a>` — combined with `w3-mobile` to become 100% width on small screens. [S1]
- Fixed-to-viewport bar: `<div class="w3-top"><div class="w3-bar">...</div></div>`. [S1]
- Text-only hover effect: `<a class="w3-bar-item w3-button w3-hover-none w3-text-grey w3-hover-text-white">Link 1</a>`. [S1]
- Navbar with input + button combo: `<input type="text" class="w3-bar-item w3-input" placeholder="Search.."><a href="#" class="w3-bar-item w3-button w3-green">Go</a>`. [S1]

## ⚖️ 모순 및 업데이트 (Contradictions & updates)
- **바 전체 vs 개별 링크 패딩의 호버 차이**: 바 컨테이너에 패딩을 주면 개별 링크가 호버 시 전체 패딩 영역을 갖지 못한다는 점이 원문에서 명시적으로 경고됨. [S1]

## 🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — w3-top으로 상단 고정 네비게이션 바를 만들고 작은 화면에서 햄버거 버튼으로 축소하는 조합이 실전 반응형 웹사이트 헤더의 대표 패턴이다. [S1]

## 💻 코드 패턴 (Code patterns)
Fixing a navigation bar to the top of the viewport (HTML/CSS):
```html
<div class="w3-top">
  <div class="w3-bar w3-black">
    <a href="#" class="w3-bar-item w3-button">Home</a>
    <a href="#" class="w3-bar-item w3-button">Link 1</a>
  </div>
</div>
```

## ✅ 검증 상태 및 신뢰도
- **상태:** draft
- **검증 단계:** conceptual
- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
- **신뢰 점수:** 0.87
- **중복 검사 결과:** 신규 생성 (New discovery)

## 🔗 지식 그래프 (Knowledge Graph)
- **상위/루트:** [[W3.CSS Tutorial]]
- **관련 개념:** [[W3CSS Bars]], [[W3CSS Dropdowns]], [[W3CSS Icons]], [[W3CSS Sidebar]]
- **참조 맥락:** 수평 네비게이션 바 종합 챕터 — 수직 사이드바(Sidebar) 챕터로 직접 이어짐.

## 📚 출처 (Sources)
- [S1] W3Schools — W3.CSS Navigation Bars — https://www.w3schools.com/w3css/w3css_navigation.asp

## 📝 변경 이력 (Change history)
- 2026-07-04: Initial draft synthesized from the W3Schools "W3.CSS Navigation Bars" page (Astra wiki-curation, P-Reinforce v3.1 format).