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<!DOCTYPE html> <html lang="en"> <head> <title>Bootstrap Example</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>按钮组大小</h2> <p>添加类 .btn-group-*，可调整按钮组中所有按钮的大小。</p> <h3>大型按钮：</h3> <div class="btn-group btn-group-lg"> <button type="button" class="btn btn-primary">华为</button> <button type="button" class="btn btn-primary">大疆</button> <button type="button" class="btn btn-primary">小米</button> </div> <hr> <h3>默认按钮：</h3> <div class="btn-group"> <button type="button" class="btn btn-primary">华为</button> <button type="button" class="btn btn-primary">大疆</button> <button type="button" class="btn btn-primary">小米</button> </div> <hr> <h3>小型按钮：</h3> <div class="btn-group btn-group-sm"> <button type="button" class="btn btn-primary">华为</button> <button type="button" class="btn btn-primary">大疆</button> <button type="button" class="btn btn-primary">小米</button> </div> </div> </body> </html>