多级联动导航栏(top导航)
http://www.dynamicdrive.com/style/csslibrary/item/jquery_multi_level_css_menu_2/
This is a multi-level horizontal CSS menu created using a regular nested HTML list, then turned into a fully functional drop down menu using CSS and a touch of jQuery. The sub menus slide in and out into view, which also automatically reposition themselves horizontally if too close to the window's right edge.
Demo:
http://www.dynamicdrive.com/style/csslibrary/item/jquery_multi_level_css_menu_2/
Important: Make sure your page contains a valid doctype for this menu to render properly.
HTML 5 advocates the use of the very simple doctype:<!DOCTYPE HTML>
The external files: The menu requires the following support files, which you should upload by default all to the same directory as your page itself:
- jqueryslidemenu.css
- jqueryslidemenu.js (inside this file, you should confirm the full URL to the 2 arrow images below)
If you wish to upload the above files to a different directory, be sure to edit "jqueryslidemenu.js" to update the URLs to the two arrow images used.
The CSS/ JavaScript: The below code should be added to the HEAD section of your page: