<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
a:link {
color: dodgerblue;
}
a:visited {
color: darkgoldenrod;
}
a:hover {
/* 背景颜色 */
background-color: gold;
}
a:active {
font-size: 50px;
}
</style>
</head>
<body>
<p>
<a href="http://www.imooc.com">前往慕课网</a>
</p>
<p>
<a href="http://www.jd.com">前往京东商城</a>
</p>
</body>
</html>