使用 。引导程序中的nav对齐类，以引导程序中的选项卡为中心。
您可以尝试将以下代码运行到中心选项卡-
<!DOCTYPE html> <html> <head> <title>Bootstrap Example</title> <link rel = "stylesheet" href = "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/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/3.3.7/js/bootstrap.min.js"></script> </head> <body> <div class = "container"> <h2>Web Development</h2> <p>The following are the web dev technologies:</p> <ul class = "nav nav-pills nav-justified" role = "tablist"> <li class = "active"><a href = "#">HTML5</a></li> <li><a href = "#">jQuery</a></li> <li><a href = "#">JavaScript</a></li> <li><a href = "#">Ajax</a></li> <li><a href = "#">ES6</a></li> </ul> </div> </body> </html>