beomjae · beomjae · Oct 24, 2025 · Oct 24, 2025
diff --git a/CLAUDE.md b/CLAUDE.md
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+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+This is a simple static HTML website project with Korean language content. The repository contains basic HTML pages for demonstration and learning purposes.
+
+## File Structure
+
+- `index.html` - Main page with JavaScript examples demonstrating array iteration methods (for loops, forEach, for...of)
+- `1.html` - First sub-page (Korean: "첫번째 서브 페이지")
+- `survey_main.html` - Survey page (Korean: "설문조사 메인 페이지")
+- `test.txt`, `test2.txt`, `test3`, `test4`, `test5` - Empty test files from commit history
+
+## Development
+
+### Viewing the Site
+
+Since this is a static HTML site with no build process, you can view it by:
+
+1. Opening HTML files directly in a browser:
+   ```bash
+   # For file-based viewing
+   open index.html  # macOS
+   xdg-open index.html  # Linux
+   ```
+
+2. Using a local HTTP server (recommended for avoiding CORS issues):
+   ```bash
+   # Python 3
+   python -m http.server 8000
+
+   # Python 2
+   python -m SimpleHTTPServer 8000
+
+   # Node.js (if http-server is installed)
+   npx http-server -p 8000
+   ```
+   Then visit `http://localhost:8000` in your browser.
+
+### Commit Message Convention
+
+Based on git history, commit messages are written in Korean and follow the pattern:
+- Feature additions: `#<number> <feature name> <status>` (e.g., "#2 설문조사 추가작업완료")
+- General changes: Descriptive message in Korean (e.g., "메인페이지 내용 변경")
+
+## Code Characteristics
+
+- **Language**: Korean is used for page content and commit messages
+- **JavaScript Style**: Uses both ES5 (var, for loops) and ES6 (arrow functions, for...of) syntax in index.html
+- **HTML Standard**: HTML5 with UTF-8 encoding and viewport meta tags for responsive design
diff --git a/gugudan.html b/gugudan.html
@@ -0,0 +1,111 @@
+<!DOCTYPE html>
+<html lang="ko">
+<head>
+  <meta charset="UTF-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>구구단</title>
+  <style>
+    body {
+      font-family: Arial, sans-serif;
+      max-width: 1200px;
+      margin: 0 auto;
+      padding: 20px;
+      background-color: #f5f5f5;
+    }
+    h1 {
+      text-align: center;
+      color: #333;
+    }
+    .container {
+      display: grid;
+      grid-template-columns: repeat(3, 1fr);
+      gap: 20px;
+      margin-top: 30px;
+    }
+    .table {
+      background-color: white;
+      padding: 20px;
+      border-radius: 10px;
+      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
+    }
+    .table h2 {
+      text-align: center;
+      color: #4CAF50;
+      margin-top: 0;
+      border-bottom: 2px solid #4CAF50;
+      padding-bottom: 10px;
+    }
+    .row {
+      padding: 8px;
+      margin: 5px 0;
+      border-radius: 5px;
+      transition: background-color 0.3s;
+    }
+    .row:hover {
+      background-color: #f0f0f0;
+    }
+    .equation {
+      font-size: 16px;
+      color: #555;
+    }
+    .result {
+      font-weight: bold;
+      color: #333;
+    }
+    @media (max-width: 768px) {
+      .container {
+        grid-template-columns: repeat(2, 1fr);
+      }
+    }
+    @media (max-width: 480px) {
+      .container {
+        grid-template-columns: 1fr;
+      }
+    }
+  </style>
+</head>
+<body>
+  <h1>구구단 (Multiplication Table)</h1>
+  <div class="container" id="gugudan-container"></div>
+
+  <script>
+    function createGugudan() {
+      const container = document.getElementById('gugudan-container');
+
+      // 2단부터 9단까지
+      for (let dan = 2; dan <= 9; dan++) {
+        const tableDiv = document.createElement('div');
+        tableDiv.className = 'table';
+
+        const title = document.createElement('h2');
+        title.textContent = `${dan}단`;
+        tableDiv.appendChild(title);
+
+        // 1부터 9까지 곱하기
+        for (let i = 1; i <= 9; i++) {
+          const row = document.createElement('div');
+          row.className = 'row';
+
+          const equation = document.createElement('span');
+          equation.className = 'equation';
+          equation.textContent = `${dan} × ${i} = `;
+
+          const result = document.createElement('span');
+          result.className = 'result';
+          result.textContent = dan * i;
+
+          row.appendChild(equation);
+          row.appendChild(result);
+          tableDiv.appendChild(row);
+        }
+
+        container.appendChild(tableDiv);
+      }
+    }
+
+    // 페이지 로드 시 구구단 생성
+    createGugudan();
+  </script>
+</body>
+</html>