abstract：<!DOCTYPE html><html><head> <mega charset="utf-8"> <title>网页头部</title></head><body> <div style="background:red;height:300px;width=400p
<!DOCTYPE html>
<html>
<head>
<mega charset="utf-8">
<title>网页头部</title>
</head>
<body>
<div style="background:red;height:300px;width=400px;">php中文网</div>
<p style="background:blue;">欢迎您</p>
<span style="background:blue;height:300px;width=400px;">我是大佬</span><b>大大佬</b>
<img src="images/logo.jpg">
</body>
</html>