I want to know the basic difference between them. Please do not post quotations of others. I want a lucid explanation and basic information about this because i am not a pro in this field.

HTML 4 is a markup language used for displaying text and documents across different platforms and machines. It was originally intended for a very specific audience, and has expanded to include hypertext, multimedia, as well as the style of the documents displayed.

XML is an extensible markup language that was developed to retain the flexibility and power of HTML while reducing most of the complexity.

XHTML combines the flexibility of HTML with the extensibility of XML.With XHTML, if you find a need for a new markup tag, you simply define it in an XHTML module and use it in your page as you would any other HTML tag. You can also use XHTML to markup the code as appropriate for the (XHTML compatible) browser that is viewing it.

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The XHTML combines with the flexibility of HTML with the extensibility of XML. that is a good information.


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XHTML is not very different from the HTML 4.01 standard.
So, bringing your code up to the 4.01 standard is a good start.
Our complete HTML 4.01 reference can help you with that.
In addition, you should start NOW to write your HTML code in lowercase letters, and NEVER skip closing tags (like </p>).
The Most Important Differences:
* XHTML elements must be properly nested
* XHTML elements must always be closed
* XHTML elements must be in lowercase
* XHTML documents must have one root element

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HTML stands for Hyper Text Markup Language. HTML is not a programming language, it is a markup language. A markup language is a set of markup tags. HTML uses markup tags to describe web pages.
XHTML is a stricter and cleaner version of HTML. XHTML stands for Extensible Hypertext Markup Language .XHTML is almost identical to HTML 4.01.XHTML is a stricter and cleaner version of HTML. XHTML is HTML defined as an XML application.XHTML is a W3C Recommendation.

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HTML stands for Hyper Text Markup Language. HTML is not a programming language, it is a markup language. A markup language is a set of markup tags. HTML uses markup tags to describe web pages.
XHTML is a stricter and cleaner version of HTML. XHTML stands for Extensible Hypertext Markup Language .XHTML is almost identical to HTML 4.01.XHTML is a stricter and cleaner version of HTML. XHTML is HTML defined as an XML application.XHTML is a W3C Recommendation.

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HTML stands for Hypertext markup language. The tags are very useful to make the markup language as a useful one. The new extension of the HTML is XHTML. It is also known as Extentsible Hypertext markup langugae. There are some minor differences between HTML and XHTML. It varies from the different point of view. The case sensitivity is the major differences between them.
That really makes the users to use the different types of tags for them to prove it. The tags in a optional manner in XHTML proves to be a better experience for the users to use this type of coding for them. The root element properties also varies form the HTML to use it in a unique manner. It is the main reason for the people in preferring HTML than XHTML.

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HTML defines the Hypertext Markup Language. It is the markup language used in nowadays frequently. That only gives the best option for the people to select the There is no nesting for the elements should be in a proper manner for the HTML.
In XHTML, the elements are always closed in a better manner to maintain a better coding. XHTML elements must use the better option for the people to show it. The root element is the best way for the people to know about the coding of XHTML. It will give the exact reason for the people in preferring the HTML over XHTML.

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There are two primary parts to XHTML:

* HTML 4
HTML 4 is a markup language used for displaying text and documents across different platforms and machines. It was originally intended for a very specific audience, and has expanded to include hypertext, multimedia, as well as the style of the documents displayed.

* XML
XML is an extensible markup language that was developed to retain the flexibility and power of HTML while reducing most of the complexity.

XHTML combines the flexibility of HTML with the extensibility of XML. But what does this mean?

In my tags for one browser article, I wrote about HTML tags that are only viewable in one browser or another. Some of these tags had been brought into the HTML 4.0 DTD, and others had not, but the result of using these tags is that your pages will never look the same in all browsers. The only solutions that an HTML writer has are: not use those tags, use those tags and state that the page is meant for one browser or another, or write multiple pages and use scripting techniques to direct readers to the appropriate pages.

With XHTML this is not necessary. With XHTML, if you find a need for a new markup tag, you simply define it in an XHTML module and use it in your page as you would any other HTML tag. You can also use XHTML to markup the code as appropriate for the (XHTML compatible) browser that is viewing it.

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Hello
XHTML is fundamentally different from HTML, despite looking very similar.

* XHTML is XML, which means that the syntax rules are slightly different.
* There are things you can do in XHTML which you cannot do in HTML.
* There are things you can do in HTML which you cannot do in XHTML.
* There are differences concerning CSS.
* There are differences concerning client-side scripting (e.g., JavaScript).


Differences in Syntax Rules

* XHTML is case-sensitive, HTML is not. All tags and attributes must be lowercase in XHTML.
* XHTML, being XML, must be well-formed. Every element must have an end tag, or use the self-closing tag syntax. HTML allows some end tags and even some start tags to be omitted.
* If an XML parser encounters a well-formedness error, it must abort. An SGML or HTML parser is expected to try to salvage what it can and keep going.
* All attributes must have a value in XHTML. HTML allows some attributes (e.g., selected) to be minimised.
* All attribute values must be surrounded by double or single quotes. HTML allows quotes to be omitted if the value contains only alphanumeric characters (and some others).
* The comment syntax is more limited in XHTML, but that's rarely an issue for most designers/developers.

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