Difference Between HTML5 And XHTML

The terms HTML5 and XHTML are markup languages often used in web design. Most people who are new to web design are often confused by these rules and do not know the difference between HTML5 and XHTML.

This confusion is understandable because they are all sign languages ​​and essentially the same goal. To overcome this confusion, let us compare them.

What are Markup Languages?

Markup languages ​​are the basic tools needed to create a webpage. Each web page contains text, images, or any other type of structured data that is displayed to the user.

When designing a web page, we may need different fonts, different words, different colors, different types of text. We need to generalize in markup, which means that the web page in every browser should be the same.

So we need a standard markup language in which web pages can provide information to the user. Markup languages ​​use tags to indicate data format.

Tags are used to display data in an organized and organized manner. Common examples of tags include title tags, body tags, and more.

Do you know the Difference Between:

Firewall and Proxy Server
SugarSync And ShareFile
Zetta and RapidShare
TitanFile and ShareFile
C And C++

Difference Between HTML5 And XHTML

HTML, which stands for Hypertext Markup Language, was the first web-based markup language used for web pages. However, HTML has grown rapidly and has become the standard for markup languages ​​in later releases.

HTML is more than just a standard language, so earlier versions of HTML4 are referred to as HTML to distinguish it from HTML5, which is completely different from the new version and earlier versions.

Difference Between HTML5 And XHTML
Difference Between HTML5 And XHTML

However, prior to the release of HTML5, the World Wide Web (also known as W3C) began developing an XML-based plugin to solve some browser compatibility issues.

XML is another standard markup language similar to HTML, but somewhat tougher on bug handling and formatting than HTML, resulting in what is known as XHTML, and extensible hypertext markup language similar to HTML4, but some rules have been introduced.


What is HTML5?

HTML5 is the latest browser standard for viewing and interacting with web pages. HTML5 aims to make it easier and more efficient for programmers and browser designers to adhere to its standards. While providing a better and faster-customized user experience for desktop and mobile viewers.

What is XHTML?

XHTML is HTML written in XML. XHTML stands for Extensible Hypertext Markup Language, but do not be fooled by these slang names.  The XHTML is written like HTML but has strict grammar.

As we said, we want to write HTML as an XML program. It should also be noted that XHTML is supported by all major browsers

Because XHTML and HTML are essentially the same, the differences between XHTML and HTML5 are the same as those between HTML4 and HTML5 . However, here are key differences between HTML5 and XHTML :

Sensitivity to Uppercase and Lowercase Letters

  • XHTML is case sensitive, but HTML5 is not.

Developed by

  • XHTML was developed by the World Wide Web Consortium ( W3C ).
  • HTML5 was developed in collaboration with WHATWG and the World Wide Web Consortium ( W3C ).

Features And Benefits

Some of the features of XHTML include:

  • Mix of HTML and XML
  • XHTML defines the standard for web pages that can be viewed by all active XHTML browsers.
  • In XHTML, pages can be easily edited and designed for easier maintenance.
  • XHTML provides a well-structured and compliant layout that can be quickly processed and analyzed by all web browsers.
  • XHTML documents can be used for applications such as applets and scripts. These programs rely on the HTML document model or the XML document model.

Key Features Of HTML5

  • This allows users to drag and drop items from one place to another on the same web page.
  • Allows users to share locations across different web applications.
  • This feature allows events to be sent to a web browser via a web server. These events are called server-sent events.
  • Several new elements have been added such as <header>, <footer> and <section>.
  • Users use this feature to create their own words that go beyond HTML5 and extend web pages with their own custom meaning.

XHTML Syntax

  • When writing XHTML code, keep the following in mind:
  • The tags must be configured correctly.
  • All XHTML attributes and tags must be in lowercase.
  • All XHTML documents must begin with DOCTYPE.
  • The username attribute should be replaced with the id attribute.
  • Ignore the naming language feature in the script.

HTML5 Syntax

  • Tags are great
  • Attribute values ​​are optional
  • Closing empty items are optional
  • Quotes are optional for attributes.

Attributes Of XHTML And HTML5

XHTML Attributes

Here are some XHTML related attributes:

Key Attributes: Type, Identifier, Style, and Title.

Language Attributes: Specify the language used.

It also has Microsoft-specific features that include access keys, language, tab index, hide focus and more.

HTML5 Attributes

Align: Use to align scores on the right, left, or center.

Hidden: Determines whether the item should be hidden or not

Product Material: Used to group products

Tabindex: Specifies the tab order for each item

Data-XXXX: Helps to customize attributes and specify author attributes.


  • XHTML provides elements such as <body text> and <frameset>, these attributes can be used in JavaScript.
  • XHTML contains <form> events, which are executed when elements are changed, forms are submitted, and so on.
  • It also supports keyboard events.
  • Supports event programmers in HTML5 JavaScript and allows users to specify attributes in the event tag.
  • It also supports events such as uploading documents.

Final Words

In the end, all are sign language and only some features in each are missing from the others. Although XHTML was designed to be the best version of HTML4 with some features of XML.

HTML5 is much better than both and is the most popular markup language today due to its incorporation of many basic features. In fact, they are all different versions of HTML but have different styles and syntax features.

If you are new to web design, we do not recommend HTML4 or XHTML, and it makes sense to learn HTML5 first to improve compatibility and widespread use.

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