Js+css to achieve exquisite two-level navigation effect code _JAVASCRIPT skills

The example of this article describes the JS+CSS implementation of the exquisite two-level navigation effect code. Share to everyone for your reference. Specifically as follows:

This is a js+css based on the implementation of exquisite level two navigation, suitable for want to learn some basic points, basic JS knowledge and skills of friends. In fact, the completion of this menu is not only the need for basic knowledge, but also need to be familiar with CSS after the clever idea, the menu may be written, but write a good menu is not so easy.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/js-css-jm-2l-nav-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 ">  

I hope this article will help you with your JavaScript programming.