<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script> <link rel="stylesheet" href="https://cdn.bootcss.com/twitter-bootstrap/3.3.7/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script> <style> .box{ 400px; height: 600px; margin-top: 100px; } </style> </head> <body> <div class="container box"> <div class="panel-group"> <div class="panel panel-default"> <div class="panel-heading"> <h4 class="panel-title"> <a href="#ding" data-toggle="collapse" data-parent="#accordion">订单管理</a> </h4> </div> <div id="ding" class="panel-collapse collapse in"> <div class="panel-body"> <ul class="nav"> <li> <a href="#">衣服管理</a> </li> <li> <a href="#">鞋子管理</a> </li> <li> <a href="#">水果管理</a> </li> <li> <a href="#">蔬菜管理</a> </li> <li> <a href="#">电脑管理</a> </li> </ul> </div> </div> </div> <div class="panel panel-default"> <div class="panel-heading"> <h4 class="panel-title"> <a href="#hui" data-toggle="collapse" data-parent="#accordion">会员管理</a> </h4> </div> <div id="hui" class="panel-collapse collapse"> <div class="panel-body"> <ul class="nav"> <li> <a href="#">衣服管理</a> </li> <li> <a href="#">鞋子管理</a> </li> <li> <a href="#">水果管理</a> </li> <li> <a href="#">蔬菜管理</a> </li> <li> <a href="#">电脑管理</a> </li> </ul> </div> </div> </div> <div class="panel panel-default"> <div class="panel-heading"> <h4 class="panel-title"> <a href="#cai" data-toggle="collapse" data-parent="#accordion">财务管理</a> </h4> </div> <div id="cai" class="panel-collapse collapse"> <div class="panel-body"> <ul class="nav"> <li> <a href="#">衣服管理</a> </li> <li> <a href="#">鞋子管理</a> </li> <li> <a href="#">水果管理</a> </li> <li> <a href="#">蔬菜管理</a> </li> <li> <a href="#">电脑管理</a> </li> </ul> </div> </div> </div> </div> </div> </body> </html>