docs(10_Wiki): 위키 구조 정리 — 언어 튜토리얼 카테고리 폴더 제거 + 신규 자산 동기화

Topic_CSS/Topic_HTML/Topic_JavaScript/Topic_Prompt/Topic_Comfyui 등 기존 카테고리 폴더를 정리하고, Topic_Graphic/Dev 등 신규 산출물과 Topics 내부 세션/메모리 기록을 동기화.
2026-07-05 00:10:59 +09:00
parent a397bc4720
commit 1cfd3bbb56
1495 changed files with 68534 additions and 27 deletions
@@ -0,0 +1,73 @@
+---
+id: howto-css-button-group
+title: "How To - Button Group"
+category: "Web_Recipes"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["btn-group horizontal CSS"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.82
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["howto", "css", "w3schools", "buttons"]
+raw_sources: ["https://www.w3schools.com/howto/howto_css_button_group.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[HOWTO CSS Button Group]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+`:not(:last-child) { border-right: none; }` solves a problem unique to adjacent bordered buttons — floating buttons side by side with individual borders would double up the border between each pair (right edge of one touching the left edge of the next), so this `:not()` selector strips the right border from every button EXCEPT the last, leaving a single shared-looking seam between buttons instead of a visibly doubled line. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **`float: left` buttons + clearfix** — the same clearfix pattern from the layout recipes, needed here because the button group container would otherwise collapse. [S1]
+- **`:not(:last-child) { border-right: none; }`** — prevents double borders between adjacent buttons by removing the right border from all but the final button. [S1]
+- **Justified/full-width variant** — set the container to `width: 100%` and give each button an explicit percentage width (`33.3%` for 3 buttons, `25%` for 4) so the group spans the full container width evenly. [S1]
+
+## 📖 세부 내용 (Details)
+- Horizontal group: `.btn-group button { float: left; border: 1px solid green; } .btn-group button:not(:last-child) { border-right: none; } .btn-group:after { content: ""; clear: both; display: table; }`. [S1]
+- Justified variant: inline `style="width:33.3%"` on each of 3 buttons inside a `width:100%` container. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+없음 — 신규 레시피, 기존 문서와 모순되는 내용 없음.
+
+## 🛠️ 적용 사례 (Applied in summary)
+Apple/Samsung/Sony 버튼 3개를 이중 테두리 없이 나란히 배치하고, 컨테이너 전체 폭에 맞춰 균등 분할하는 justified 버전도 함께 제시됨. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Button group without doubled borders between buttons (CSS):
+```css
+.btn-group button {
+  float: left;
+  border: 1px solid green;
+}
+.btn-group button:not(:last-child) {
+  border-right: none;
+}
+.btn-group:after {
+  content: ""; clear: both; display: table;
+}
+```
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual
+- **출처 신뢰도:** B (W3Schools — widely used educational reference)
+- **신뢰 점수:** 0.82
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[W3Schools HOW TO]]
+- **관련 개념:** [[HOWTO CSS Button Group Vertical]], [[HOWTO CSS Block Buttons]]
+- **참조 맥락:** CSS Buttons 섹션.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — How To - Button Group — https://www.w3schools.com/howto/howto_css_button_group.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "How To - Button Group" recipe (Astra wiki-curation, P-Reinforce v3.1 format).