Complex drop-down navigation for work records

The navigation bar of a website is the most important. The navigation bar should tell the visitors of the website what the website has and how to go. Therefore, the design of website navigation should change according to the type and function of the website.

Recently, I received a template customization for an enterprise website, and the requirements for navigation are complex. Combining the current popular website design (solid color flattening, less pictures, etc.), I made a drop-down navigation bar.

Pull down navigation bars are generally controlled by js (also defined by pure css), nested with<ul><li></li></ul>, and put a picture:

Friends who are interested in the drop-down navigation are also welcome to talk with me. The js of the drop-down navigation is downloaded from the Internet. Those who are interested in it can also find our download address.