What is the difference between xhtml and html5

Differences: 1. XHTML requires correct nesting, but html5 does not. 2. All elements of XHTML must be closed, but html5 does not. 3. XHTML is case-sensitive, but html5 does not. 4. XHTML attribute values ​​must be used Double quotation marks are not required in html5; 5. XHTML uses the id attribute instead of the name attribute.

The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.

Since I was asked about the difference between HTML5 and XHTML, I will share with you some of my personal understanding here. At the same time, I also think that from their origin, they hide an interesting story.

First get to know three organizations, IETF (Internet Engineering Task Force), W3C (World Wide Web Consortium), the most authoritative and influential international neutral technical standards organization in the web field. , WHATWG (Web Hypertet Application Technology Working Group) Hypertext Application Technology Working Group, composed of browser manufacturers. There is also an important person, Tim Berners Lee, the father of the Web.

1991 Tim Berners Lee This person wrote an HTML document. In November 1995, the IETF published HTML2.0. In 1994, Tim Berners Lee established the W3C organization and codified the web standards, and subsequently published HTML3.2, HTML4.0, and HTML4. .01. Subsequently, W3C introduced XML into HTML, which became XHTML. W3C’s closed-door approach aroused dissatisfaction among major browser manufacturers. So major browser manufacturers joined forces to establish the WHATWG organization to expand on the basis of HTML. , committed to the development of HTML5. W3C continued to develop XHTML, but ran into difficulties. So Tim Berners Lee decided to adopt HTML5 and continued to develop XHTML. In 2009, W3C announced the termination of the research and development of XHTML2.0 and began to study HTML5 wholeheartedly. HTML5 is The result of the game between W3C and WHATWG. When I learned this story, I thought it was a bit interesting. As the saying goes, learning alone without friends means being ignorant. It is really true. Let’s learn from it.

Let’s talk about HTML5 and The difference in syntax of XHTML.

1. XHTML requires correct nesting

2. All XHTML elements must be closed

3. XHTML is case sensitive

4. XHTML attribute values ​​must use double quotes

5. XHTML uses the id attribute instead of the name attribute

Recommended tutorial: "html video tutorial"

The above is the detailed content of What is the difference between xhtml and html5. For more information, please follow other related articles on the PHP Chinese website!