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.
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+---
+id: w3css-progress-bar
+title: "W3CSS Progress Bar"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["progress bar", "setInterval progress", "W3.CSS 프로그레스 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", "progress-bar"]
+raw_sources: ["https://www.w3schools.com/w3css/w3css_progressbar.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[W3CSS Progress Bar]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+A W3.CSS progress bar is nothing but a plain `<div>` nested inside another `<div>`, with the inner div's inline CSS `width` percentage doing 100% of the "progress" representation — meaning a dynamic/animated progress bar is just `setInterval` incrementing that one CSS property over time, with zero framework-specific progress API. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **Two-div structure** — outer div (`w3-light-grey`, the track) contains an inner div (any `w3-color`, the fill) whose `width` percentage IS the progress value. [S1]
+- **Labels** — placing text directly inside the inner (colored) div, with `w3-container` for padding and `w3-center` for alignment, turns the fill into a labeled progress bar. [S1]
+- **Dynamic progress via `setInterval`** — `setInterval(frame, 10)` repeatedly increments a `width` variable and applies it to the inner div's style until it reaches 100%, then `clearInterval` stops the loop. [S1]
+- **Composable styling** — `w3-round` for rounded corners, `w3-padding` for internal spacing, `w3-size` classes for label text size — all standard utility classes apply directly to the progress divs. [S1]
+
+## 📖 세부 내용 (Details)
+- Basic static progress bar: `<div class="w3-border"><div class="w3-grey" style="height:24px;width:20%"></div></div>`. [S1]
+- Labeled, centered progress bar: `<div class="w3-light-grey"><div class="w3-container w3-green w3-center" style="width:25%">25%</div></div>`. [S1]
+- Dynamic JS-driven progress bar: `function move() { var elem = document.getElementById("myBar"); var width = 1; var id = setInterval(frame, 10); function frame() { if (width >= 100) { clearInterval(id); } else { width++; elem.style.width = width + '%'; } } }`. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+- 현재까지 발견된 모순 사항 없음 (No contradictions found in available sources).
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — setInterval로 width 값을 1%씩 증가시키며 애니메이션 진행 바를 만드는 패턴이 파일 업로드 진행률 표시 등 실전 활용의 대표 기법이다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+A dynamic progress bar driven purely by incrementing a div's width via setInterval (HTML/JS):
+```html
+<div class="w3-light-grey">
+  <div id="myBar" class="w3-container w3-green" style="height:24px;width:1%"></div>
+</div>
+<button class="w3-button w3-light-grey" onclick="move()">Click Me</button>
+<script>
+function move() {
+  var elem = document.getElementById("myBar");
+  var width = 1;
+  var id = setInterval(frame, 10);
+  function frame() {
+    if (width >= 100) {
+      clearInterval(id);
+    } else {
+      width++;
+      elem.style.width = width + '%';
+    }
+  }
+}
+</script>
+```
+
+## ✅ 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 Pagination]], [[W3CSS Slideshow]]
+- **참조 맥락:** setInterval 기반 동적 UI 패턴 — 슬라이드쇼(Slideshow) 챕터에서 동일 타이머 패턴이 재등장.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — W3.CSS Progress Bars — https://www.w3schools.com/w3css/w3css_progressbar.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "W3.CSS Progress Bars" page (Astra wiki-curation, P-Reinforce v3.1 format).