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>

10_Wiki/Topic_CSS/CSS_Link_Buttons.md

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+---
+id: css-link-buttons
+title: "CSS Link Buttons"
+category: "Frontend"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["link buttons", "button links", "CSS buttons", "styled links as buttons", "inline-block links"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.88
+created_at: 2026-06-23
+updated_at: 2026-06-23
+review_reason: ""
+merge_history: []
+tags: ["css", "web", "frontend", "w3schools", "links", "buttons"]
+raw_sources: ["https://www.w3schools.com/css/css_link_buttons.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[CSS Link Buttons]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+By combining several CSS properties — background color, padding, text alignment, removed underline, and `display: inline-block` — ordinary HTML links can be displayed as boxes or buttons that respond to hover. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **Links as buttons** — this is a demonstration of combining several CSS properties to display links as boxes/buttons. [S1]
+- **Box model on links** — `padding`, `display: inline-block`, and `background-color` turn an inline link into a button-like box. [S1]
+- **Hover feedback** — the `:hover`/`:active` states change the background (and optionally text) color for interactivity. [S1]
+
+## 🧩 추출된 패턴 (Extracted patterns)
+- **Filled button pattern** — solid background color with white text, padding, no underline, `inline-block`; darken background on hover. [S1]
+- **Outlined button pattern** — white background with a colored border that inverts (fills) on hover. [S1]
+
+## 📖 세부 내용 (Details)
+This page demonstrates combining several CSS properties to display links as boxes/buttons. [S1]
+
+**Example 1 — filled (red) button:** [S1]
+```css
+a:link, a:visited {
+  background-color: #f44336;
+  color: white;
+  padding: 14px 25px;
+  text-align: center;
+  text-decoration: none;
+  display: inline-block;
+}
+
+a:hover, a:active {
+  background-color: red;
+}
+```
+
+**Example 2 — outlined (green) button:** [S1]
+```css
+a:link, a:visited {
+  background-color: white;
+  color: black;
+  border: 2px solid green;
+  padding: 10px 20px;
+  text-align: center;
+  text-decoration: none;
+  display: inline-block;
+}
+
+a:hover, a:active {
+  background-color: green;
+  color: white;
+}
+```
+
+In both examples, the `:link` and `:visited` states define the default button appearance, while `:hover` and `:active` change the colors to give a clickable feel. The key properties are `background-color`, `color`, `padding`, `text-align`, `text-decoration: none`, `display: inline-block`, and (for example 2) `border`. [S1]
+
+## 🛠️ 적용 사례 (Applied in summary)
+The page's two examples apply the patterns to anchor elements: a filled red button and an outlined green button that inverts on hover. No external project/commit applications found in the source.
+
+## 💻 코드 패턴 (Code patterns)
+Filled link button (language: CSS):
+```css
+a:link, a:visited {
+  background-color: #f44336;
+  color: white;
+  padding: 14px 25px;
+  text-align: center;
+  text-decoration: none;
+  display: inline-block;
+}
+a:hover, a:active {
+  background-color: red;
+}
+```
+
+## ⚖️ 비교 및 선택 기준 (Comparison & decision criteria)
+The page presents two button styles. The **filled button** (Example 1) uses a solid `background-color` with white text and darkens on hover — suited to primary call-to-action emphasis. The **outlined button** (Example 2) uses a white background with a `2px solid green` border and inverts to a filled green button on hover — a lighter-weight look for secondary actions. Both rely on the same box-model foundation (`padding`, `text-decoration: none`, `display: inline-block`); the choice is purely the default visual weight desired. [S1]
+
+## ⚖️ 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:** 0.88
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[CSS Tutorial]]
+- **관련 개념:** [[CSS Styling Links]], [[CSS Buttons]], [[CSS Styling Lists]]
+- **참조 맥락:** Referenced when an anchor link should look and behave like a clickable button.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — CSS Link Buttons — https://www.w3schools.com/css/css_link_buttons.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-06-23: Initial draft synthesized from the W3Schools "CSS Link Buttons" page (Astra wiki-curation, P-Reinforce v3.1 format).