CSS设置二级菜单样式

效果如下:



代码如下:

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>

<style>
ul{
	list-style-type:none;		<-将菜单设置为无标记->
}
li{
	float:left;					<-菜单设置为水平方向 ->
	width:60px;
	border:1px solid #B8B8B8;
	text-align:center;
}
a:link,a:visited{				<-选择未被访问的链接,并设置其样式: ->		
	display:block;
	font-weigth:bold;
	background-color:#D9D9D9;
	color:whiter;
	padding:5px;
	text-align:center;
	text-decoration:none;
}
a:hover,a:active{				<-鼠标到那位置时的操作->
	background-color:#F17022;
}
#nenu li{
	float:left;
	margin:1px;
	position:relative;
}
#menu li ul{
	display:none;
	margin:0;
	padding:2px 0;
}
#menu li:hover ul{
	display:block;
	<- position:absolute;->
	
}
</style>

<body>

<ul id="menu">
	<li><a href="#">menu</a></li>
	<li><a href="#">menu</a>
		<ul>
		<li><a href="#">item</a>
			<li><a href="#">item</a>
			<li><a href="#">item</a>
		</ul>
	</li>
	<li><a href="#">menu</a>
		<ul>
		<li><a href="#">item</a></li>
			<li><a href="#">item</a></li>
			<li><a href="#">item</a></li>
		</ul>
	</li>
	
	<li><a href="#">menu</a>
		<ul>
		<li><a href="#">item</a></li>
			<li><a href="#">item</a></li>
			<li><a href="#">item</a></li>
		</ul>
	</li>
	
	<li><a href="#">menu</a>
		<ul>
		<li><a href="#">item</a></li>
			<li><a href="#">item</a></li>
			<li><a href="#">item</a></li>
		</ul>
	</li>
	
</ul>


</body>
</html>

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转载自blog.csdn.net/weixin_38891150/article/details/79819880