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>
</body>
</html>
Correcting teacher：天蓬老师Correction time：2019-04-12 09:16:46
Teacher's summary：以后 <div>标签中, 不要再直接放文本了, 应该放在文本标签中,例如 <h2><p>...