Warm preface: hear, a room neat person, the job also can be very outstanding, at least he treats life is not will do, so your clothes, your room, whole not neat?

1. Introduction of HTML

HTML (Hyper Text Markup Language) is translated into Chinese as “Hypertext Markup Language”, which describes the Text, pictures, sound and other content in the web page through HTML Markup.


2. History of HTML

HTML 1.0 hypertext Markup Language (first version) – released as an Internet Engineering Task Force (IETF) working draft (not standard) in June 1993

HTML 2.0 – released as RFC 1866 in November 1995, was declared obsolete after RFC 2854 was released in June 2000

HTML 3.2 – W3C recommendation dated January 14, 1996

HTML 4.0 – December 18, 1997,W3C recommendation

HTML 4.01(Minor Improvements) – December 24, 1999,W3C recommendation

XHTML 1.0 – Released On January 26, 2000 as a W3C recommendation and later reissued on August 1, 2002 with revisions

XHTML 1.1 – released May 31, 2001

HTML5.0 – On October 29, 2014, the World Wide Web Consortium (W3C) announced that, after nearly 8 years of hard work, the standard specification was finally finalized.


3. The HTML structure

Web pages

HTML: page structure

CSS: Page style presentation

JavaScript: Interactive behavior


What is a browser?

Browser: Software that helps users navigate the Web.

Browser and browser kernel: IE: Trident, Safari: WebKit, Firefox: Gecko, Chrome, Opera: Chromium, Edge: Microsoft’s latest browser

The corresponding browser is as follows:


5. What are servers and Web servers?

A server is a computer with strong stability


6. The secrets behind web requests

The overall process:

1. A user requests a web page using a browser on the client

2. Network data transmission

3. The server parses user requests

4. The server processes the request and returns the page content

5. The browser accepts the returned web page

6. The browser renders visual web content


Well, that's all for today's content. Thank you for reading!

The next section is Sharing the CSS