在Bootstrap中使用.btn-group-vertical类，使按钮组垂直堆叠显示。
您可以尝试运行以下代码来实现.btn-group-vertical类
<!DOCTYPE html> <html> <head> <title>Bootstrap Example</title> <link rel = "stylesheet" href = "https://maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css"> <script src = "https://cdn.staticfile.org/jquery/3.3.1/jquery.min.js"></script> <script src = "https://maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> </head> <body> <p>The following are the car brands:</p> <div class = "btn-group-justified btn-group-lg"> <button type = "button" class = "btn btn-primary">BMW</button> <button type = "button" class = "btn btn-primary">Audi</button> <button type = "button" class = "btn btn-primary">Jeep</button> <button type = "button" class = "btn btn-primary">Datsun</button> <button type = "button" class = "btn btn-primary">Toyota</button> </div> <p>The following are FMCG:</p> <div class = "btn-group-justified btn-group-sm btn-group-vertical"> <button type = "button" class = "btn btn-primary">ITC Limited</button> <button type = "button" class = "btn btn-default">Colgate-Palmolive</button> <button type = "button" class = "btn btn-primary">Nestle</button> <button type = "button" class = "btn btn-default">Britannia Industries Limited</button> </div> </body> </html>