abstract：<!DOCTYPE html><html> <head> <meta charset="utf-8" /> <title>网页抬头</title> </head> <body> <div style="backgound:red";height:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>网页抬头</title>
</head>
<body>
<div style="backgound:red";height:300px;width;400px;>块级元素，不给宽度为默认宽度</div>
<p style="backgound:bule";>块级元素，宽高生效，单独一行</p>
<span style="backgound:red";>行内元素宽高不生效，多标签一行</span>
<img src=桌面/0854e0a4228f4bcfa39d535242e795df;style="backgound:bule";><b>结合块级和行内元素特点，宽高生效，可多标签存在一行</b>
</body>
</html>
Correcting teacher：查无此人Correction time：2019-05-14 09:10:23
Teacher's summary：完成的不错。刚接触编程，学习比较辛苦，要坚持。继续加油。