多功能图标下拉导航菜单是一款基于jQuery+CSS实现的多功能嵌套网站下拉导航菜单，带有搜索功能，留言框，关于我们。-Multifunctional icon drop-down menu is a navigation based on jQuery+ CSS to achieve multifunctional nesting site navigation drop-down menu, with search function, a message box about us.