abstract：<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>网页头部</title> </head> <body> <div style="background:blue;
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>网页头部</title> </head> <body> <div style="background:blue;">立体空间</div> <p>欢迎你</p> </body> </html>
Correcting teacher：查无此人Correction time：2019-05-23 13:23:26
Teacher's summary：完成的不错。刚接触编程，理解起来比较辛苦。要坚持，继续加油。