HTML Learning Notes: 1. Basic concepts

①html：HYperTExtMArkupLAnguage, or Hypertext Markup Language, which consists of tags②html History（several important nodes）:

1. 1993 (IETF): HTML 1.0
2. 1995: HTML 2.0
3. 1996 ...
4. 1997 ...
5. 1998 ...
6. 1999 ...
7. (a): XHTML 1.0

.     　　  .      　　 .       　　.      　　 . .

8.2015:html 5.0

③HTML Features

1. HTML does not need to be compiled and is executed directly by the browser.
2. HTML is a text file.
3. The suffix of the HTML file must be HTML or HTM.
4. The HTML language is not case sensitive and HTML is the same as HTML.

HTML Learning Notes: 1. Basic concepts