JavaScript多级下拉菜单代码(简单实用)

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我是靠谱客的博主轻松棒棒糖，这篇文章主要介绍JavaScript多级下拉菜单代码(简单实用)，现在分享给大家，希望可以做个参考。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<title>JavaScript下拉菜单</title> 
<style type="text/css"> 
* { 
padding:0; 
margin:0; 
} 
body { 
font-family:verdana, sans-serif; 
font-size:small; 
} 
#navigation, #navigation li ul { 
list-style-type:none; 
} 
#navigation { 
margin:20px; 
} 
#navigation li { 
float:left; 
text-align:center; 
position:relative; 
} 
#navigation li a:link, #navigation li a:visited { 
display:block; 
text-decoration:none; 
color:#000; 
width:120px; 
height:40px; 
line-height:40px; 
border:1px solid #fff; 
border-width:1px 1px 0 0; 
background:#c5dbf2; 
padding-left:10px; 
} 
#navigation li a:hover { 
color:#fff; 
background:#2687eb; 
} 
#navigation li ul li a:hover { 
color:#fff; 
background:#6b839c; 
} 
#navigation li ul { 
display:none; 
position:absolute; 
top:40px; 
left:0; 
margin-top:1px; 
width:120px; 
} 
#navigation li ul li ul { 
display:none; 
position:absolute; 
top:0px; 
left:130px; 
margin-top:0; 
margin-left:1px; 
width:120px; 
} 
</style> 
 
</head> 
<body> 
<ul id="navigation"> 
<li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)"> 
栏目1 
<ul> 
<li>栏目1->菜单1</li> 
<li>栏目1->菜单2</li> 
<li>栏目1->菜单3</li> 
<li>栏目1->菜单4</li> 
</ul> 
</li> 
<li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)"> 
栏目2 
<ul> 
<li>栏目2->菜单1</li> 
<li>栏目2->菜单2</li> 
<li>栏目2->菜单3</li> 
<li>栏目2->菜单4</li> 
<li>栏目2->菜单5</li> 
</ul> 
</li> 
<li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)"> 
栏目3 
<ul> 
<li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)"> 
栏目3->菜单1 
<ul> 
<li>菜单1->子菜单1</li> 
<li>菜单1->子菜单2</li> 
<li>菜单1->子菜单3</li> 
<li>菜单1->子菜单4</li> 
</ul> 
</li> 
<li>栏目3->菜单2</li> 
<li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)"> 
栏目3->菜单3 
<ul> 
<li>菜单3->子菜单1</li> 
<li>菜单3->子菜单2</li> 
<li>菜单3->子菜单3</li> 
</ul> 
</li> 
</ul> 
</li> 
</ul> 
</body> 
</html>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]