4.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>品牌全知道</title>
</head>
<body>
<h1><img src="iknowshouye.jpg" align=" "></h1>
<h3><strong>品牌全知道</strong></h3>
<ul>
<li><img src="icon-1.jpg" align="">理肤泉敏感全知道</li>
<li><img src="icon-2.jpg" align="">薇姿健康肌肤全知道</li>
<li><img src="icon-3.jpg" align="">中信银行全知道</li>
<li><img src="icon-4.jpg" align="">Windows7全知道</li>
<li><img src="icon-5.jpg" align="">海信电视全知道</li>
<li><img src="icon-6.jpg" align="">多美滋全知道</li>
<li><img src="icon-7.jpg" align="">三星全知道</li>
</ul>
</body>
</html>
5.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>贵美商城-商品购买页</title>
<style>
header {
height: 200px;
border: 1px solid red;
}
section{
height: 400px;
border: 1px solid red;
}
footer{
height: 200px;
border: 1px solid red;
}
</style>
</head>
<body>
<header><h1>贵美商城</h1></header>
<section><h1>我的购物车</h1></section>
<footer><h1>版权</h1></footer>
</body>
</html>