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>
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