这是一款jquery多级下拉菜单，在支持html5的浏览器中测试你会发现本菜单很智能，会自动判断浏览器边界来改变下拉菜单的显示方向，在ie下没发现此效果。整体上来看，和windows系统的“经典”主题时的菜单风格特别相似，配合图片，整体效果还是相当有专业水准的。
运行效果截图如下：
在线演示地址如下：
http://demo.jb51.net/js/2015/jquery-nlevel-nav-menu-style-codes/
具体代码如下：
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希望本文所述对大家的jquery程序设计有所帮助。