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Drop-down menu implementation method 1

Source: Internet
Author: User
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Implement a simple drop-down menu

Because the example is relatively simple, I wrote it in a text editor. nodepad ++ is a good choice, with color labels and smart prompts. It is easy to use.

First, write an HTML Tag structure.

<!DOCTYPE html PUBliC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 

 


Next, write a list.


<Body> <ul class = "menu"> <li> <a href = "#"> Level 1 menu </a> <ul> <li> <a href = "# "> Level 2 menu a </a> </LI> <li> <a href =" # "> Level 2 Menu B </a> </LI> </ul> </LI> </ul> </body>


 


 




Then write CSS to clear useless things.


*{margin:0; padding:0;border:0}li{list-style-type:none}




Add Borders and the like.


.menu li{ border:1px solid #cccccc; width:180px; height:30px; line-height:30px; background-color:#f8f8f8 }


Then, hide the level-2 menu.


.menu li ul{ position:absolute; left:-999em}


 




Write a second-level menu display style.


.menu li.on ul{  left:auto}


 


In this way, you can use js to control on to implement the drop-down menu.


$(function(){    $(".menu li").mouseover(function(){        $(this).addClass("on");    })    $(".menu li").mouseout(function(){        $(this).removeClass("on");    })})


 


Drop-down menu implementation method 1

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