界面整体布局
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>查看商品详情</title>
</head>
<body>
<h3>查看商品详情</h3>
<div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
</div>
</body>
</html>