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<!DOCTYPE html> <html lang="en"> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/js/bootstrap.bundle.min.js"></script> </head> <body> <div class="container mt-3"> <h2>按钮样式</h2> <button type="button" class="btn">基础</button> <button type="button" class="btn btn-primary">主要</button> <button type="button" class="btn btn-secondary">次要</button> <button type="button" class="btn btn-success">成功</button> <button type="button" class="btn btn-info">信息</button> <button type="button" class="btn btn-warning">警告</button> <button type="button" class="btn btn-danger">危险</button> <button type="button" class="btn btn-dark">深色</button> <button type="button" class="btn btn-light">浅色</button> <button type="button" class="btn btn-link">链接</button> </div> </body> </html>