Bootstrap 虽好,但对于复杂的界面,还是有N多组件需要自己扩展,并且要往简洁、大气的Bootstrap界面上靠,着实要费一些功夫。下面分享一个Bootstrap 3的多级下拉菜单,无需第三方Js脚本,复制后直接可用。
- <!DOCTYPE HTML>
- <html lang="zh-CN">
- <head>
- <meta charset="UTF-8">
- <title>Bootstrap 3 的多级下拉菜单示例</title>
- <script type="text/javascript" src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script>
- <link rel="stylesheet" href="http://libs.baidu.com/bootstrap/3.0.3/css/bootstrap.min.css"/>
- <script type="text/javascript" src="http://libs.baidu.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>
- <style type="text/css">
- .dropdown-submenu {
- position: relative;
- }
- .dropdown-submenu > .dropdown-menu {
- top: 0;
- left: 100%;
- margin-top: -6px;
- margin-left: -1px;
- -webkit-border-radius: 0 6px 6px 6px;
- -moz-border-radius: 0 6px 6px;
- border-radius: 0 6px 6px 6px;
- }
- .dropdown-submenu:hover > .dropdown-menu {
- display: block;
- }
- .dropdown-submenu > a:after {
- display: block;
- content: " ";
- float: right;
- width: 0;
- height: 0;
- border-color: transparent;
- border-style: solid;
- border-width: 5px 0 5px 5px;
- border-left-color: #ccc;
- margin-top: 5px;
- margin-right: -10px;
- }
- .dropdown-submenu:hover > a:after {
- border-left-color: #fff;
- }
- .dropdown-submenu.pull-left {
- float: none;
- }
- .dropdown-submenu.pull-left > .dropdown-menu {
- left: -100%;
- margin-left: 10px;
- -webkit-border-radius: 6px 0 6px 6px;
- -moz-border-radius: 6px 0 6px 6px;
- border-radius: 6px 0 6px 6px;
- }
- </style>
- </head>
- <body>
- <div class="container">
- <div class="row">
- <h2>Bootstrap 3多级下拉菜单</h2>
- <hr>
- <div class="dropdown">
- <a id="dLabel" role="button" data-toggle="dropdown" class="btn btn-primary" data-target="#"
- href="javascript:;">
- 下拉多级菜单 <span class="caret"></span>
- </a>
- <ul class="dropdown-menu multi-level" role="menu" aria-labelledby="dropdownMenu">
- <li><a href="javascript:;">一级菜单</a></li>
- <li><a href="javascript:;">一级菜单</a></li>
- <li class="divider"></li>
- <li class="dropdown-submenu">
- <a tabindex="-1" href="javascript:;">一级菜单</a>
- <ul class="dropdown-menu">
- <li><a tabindex="-1" href="javascript:;">二级菜单</a></li>
- <li class="divider"></li>
- <li class="dropdown-submenu">
- <a href="javascript:;">二级菜单</a>
- <ul class="dropdown-menu">
- <li><a href="javascript:;">三级菜单</a></li>
- </ul>
- </li>
- </ul>
- </li>
- </ul>
- </div>
- </div>
- </div>
- </body>
- </html>