Learning immediately: https://edu.csdn.net/course/play/4381/77470?utm_source=blogtoedu
Documentation
head
Main content
Single label <br/>
Ditag <body> <body />
Juxtaposed
Nesting
not case sensitive
For self-closing tag, can be added, do not add
The property name may not be in quotes
Label all lowercase
Correct closing tag
Tags can be nested, bu
