error?
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>CSS 定位：relative && absolute</title>
<style>
.relative{
background-color: #0f0;
width: 100px;
height: 100px;
position: relative;
right: 200px;
bottom: 200px;
}
</style>
</head>
<body>
<div>
<div>
<!-- -->
</div>
</div>
</body>
</html>
