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<!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta content="width=device-width, initial-scale=1" name="viewport"> <link href="//cdn.staticfile.net/twitter-bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"> <script src="//cdn.staticfile.net/jquery/3.2.1/jquery.min.js"></script> <script src="//cdn.staticfile.net/popper.js/1.12.5/umd/popper.min.js"></script> <script src="//cdn.staticfile.net/twitter-bootstrap/4.0.0/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>按钮组大小</h2> <p>我么可以使用 .btn-group-lg|sm|xs 类来设置按钮组的大小。</p> <h3>大按钮:</h3> <div class="btn-group btn-group-lg"> <button class="btn btn-primary" type="button">Apple</button> <button class="btn btn-primary" type="button">Samsung</button> <button class="btn btn-primary" type="button">Sony</button> </div> <h3>默认按钮:</h3> <div class="btn-group"> <button class="btn btn-primary" type="button">Apple</button> <button class="btn btn-primary" type="button">Samsung</button> <button class="btn btn-primary" type="button">Sony</button> </div> <h3>小按钮:</h3> <div class="btn-group btn-group-sm"> <button class="btn btn-primary" type="button">Apple</button> <button class="btn btn-primary" type="button">Samsung</button> <button class="btn btn-primary" type="button">Sony</button> </div> </div> </body> </html>
运行结果