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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
</head>
<body>
<ul>
<li><a class="active" href="#home">主页</a></li>
<li><a href="#news">相册</a></li>
<li><a href="#contact">日志</a></li>
<li style="float:right"><a class="active" href="#about">关于</a></li>
</ul>
</body>
</html>
输入 JavaScript 代码……
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ul{
list-style-type:none;
padding:0;
overflow: hidden;
background-color:#DCDCDC
}
li a {
display: block;
color: #778899;
text-align: center;
padding: 14px 16px;
text-decoration: none;
li {
float: left;
.active{
background-color:#90EE90;
li a:hover{background-color:#FFF0F5;}
.dropbtn {
background-color: #4CAF50;
color: white;
padding: 16px;
font-size: 16px;
border: none;
cursor: pointer;
.dropdown {
position: relative;
display: inline-block;
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
.dropdown-content a {
color: black;
padding: 12px 16px;
.dropdown-content a:hover {background-color: #f1f1f1}
.dropdown:hover .dropdown-content {
.dropdown:hover .dropbtn {
background-color: #3e8e41;