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实例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>CCS学习</title>
<style type="text/css">
ul {
display: block;
clear: both;
}
li {
width: 50px;
height: 20px;
line-height: 20px;
display: inline;
list-style: none;
float: left;
}
.intro {
color: blue;
}
.game+li {
color: orange;
}
div {
clear: left;
padding-top: 10px;
margin-left: 20px;
}
h4:only-of-type {
color: red;
}
ul li:first-child {
color: red;
}
ul li:last-child {
color: green;
}
</style>
</head>
<body>
<ul>
<li>首页</li>
<li class="intro">简介</li>
<li id="news1">新闻</li>
<li id="news2">下载</li>
<li class="game">活动</li>
<li class="qa">问答</li>
<li>商城</li>
</ul>
<div>
<p>欢迎访问我的网站</p>
<h4>我的网站很精彩</h4>
</div>
</body>
</html>
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