CSS导航栏
代码如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=da, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>导航条</title>
<style>
* {
margin:0;
padding:0;
}
a {
color:#333;
text-decoration: none;
}
ul {
list-style:none;
}
nav {
width:500px;
margin:10px auto 0;
box-shadow: 0px 2px 4px 1px rgba(0,0,0,0.3)
}
nav::after {
content:'';
display:block;
clear:both;
} /*清除浮动*/
nav>ul>li {
position: relative;
float: left;
}
nav>ul>li:hover .child {
display: block;
} /*让隐藏的child通过点击li展现出来*/
nav a {
display:block;
padding:10px 10px;
min-width: 50px;
}
nav a:hover {
color:#fff;
background: rgba(0,0,0,0.4);
}
nav .child {
position:absolute;
top: 100%;
box-shadow: 0px 2px 4px 1px rgba(0,0,0,0.3);
display: none; /*隐藏child*/
}
</style>
</head>
<body>
<nav>
<ul>
<li><a href="#">首页</a></li>
<li><a href="#">作品</a></li>
<li>
<a href="#">更多</a>
<ul class="child">
<li><a href="#">前端</a></li>
<li><a href="#">后端</a></li>
<li><a href="#">移动端</a></li>
</ul>
</li>
</ul>
</nav>
</body>
</html>
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