Js+css to achieve a simple two-level Drop-down navigation menu effect _javascript skills

This article describes the JS+CSS implementation of a simple two-level Drop-down navigation menu effect. Share to everyone for your reference. Specifically as follows:

This is a CSS with JavaScript implementation level two Drop-down navigation menu, as if CSS to cooperate with JS to write good results, this section of the menu is also used to JS, the menu currently supports two levels, Drop-down navigation is often used in a form of a menu, this change you can use, the structure is quite simple, I believe you will do well.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/js-css-simple-2l-fade-down-menu-codes/

The specific code is as follows:

<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">  

The

wants this article to help you with your JavaScript programming.