<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<style>
#nav,
#nav ul {
padding: 0;
margin: 0;
list-style: none;
}
#nav li {
float: left;
position: relative;
width: 10em;
border: 1px solid #B0C4DE;
background-color: #E7EDF5;
color: #2D486C;
font: 80% Verdana, Geneva, Arial, Helvetica, sans-serif;
margin-right: 1em;
}
#nav a:link,
#nav a:visited {
display: block;
text-decoration: none;
padding-left: 1em;
color: #2D486C;
}
#nav ul {
display: none;
position: absolute;
padding-top: 0.5em;
}
#nav ul li {
float: none;
border: 0 none transparent;
border-bottom: 1px solid #E7EDF5;
background-color: #F1F5F9;
font-size: 100%;
margin: 0;
margin-bottom: 0.5em;
padding: 0;
}
/*使用该样式过程种注意html的层级关系*/
#nav li:hover ul {
display: block;
}
</style>
</head>
<body>
<ul id="nav">
<li><a href="#">Starters</a>
<ul>
<li><a href="#">Fish</a></li>
<li><a href="#">Fruit</a></li>
<li><a href="#">Soups</a></li>
</ul>
</li>
<li><a href="#">Main courses</a>
<ul>
<li><a href="#">Meat</a></li>
<li><a href="#">Fish</a></li>
<li><a href="#">Vegetarian</a></li>
</ul>
</li>
<li><a href="#">Desserts</a>
<ul>
<li><a href="#">Fruit</a></li>
<li><a href="#">Puddings</a></li>
<li><a href="#">Ice Creams</a></li>
</ul>
</li>
</ul>
</body>
</html>
效果图如下：
hover.png
网友评论