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JavaScript 下拉菜单实现代码

程序员文章站 2023-11-14 10:32:22

javascript下拉菜单 * { padding:0; margin:0; } body { font-family:verdana, s...

<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<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>
<ul id="navigation">
<li onmouseover="displaysubmenu(this)" onmouseout="hidesubmenu(this)"> 
 
<ul>
<li> 
<li> 
<li> 
<li> 
</ul>
</li> 
<li onmouseover="displaysubmenu(this)" onmouseout="hidesubmenu(this)"> 
 
<ul>
<li> 
<li> 
<li> 
<li> 
<li> 
</ul>
</li> 
<li onmouseover="displaysubmenu(this)" onmouseout="hidesubmenu(this)"> 
 
<ul>
<li onmouseover="displaysubmenu(this)" onmouseout="hidesubmenu(this)"> 
 
<ul>
<li> 
<li> 
<li> 
<li> 
</ul>
</li> 
<li> 
<li onmouseover="displaysubmenu(this)" onmouseout="hidesubmenu(this)"> 
 
<ul>
<li> 
<li> 
<li> 
</ul>
</li> 
</ul>
</li> 
</ul>

[ctrl+a 全选注:如需引入外部js需刷新才能执行]

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