XHTML Basic is an

XML Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing arbitrary data. It defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. ...

-based structured

markup language Markup language refers to a text-encoding system consisting of a set of symbols inserted in a text document to control its structure, formatting, or the relationship between its parts. Markup is often used to control the display of the document ...

primarily used for simple (mainly ''

handheld A mobile device (or handheld computer) is a computer small enough to hold and operate in the hand. Mobile devices typically have a flat LCD or OLED screen, a touchscreen interface, and digital or physical buttons. They may also have a physical ...

'')

user agent In computing, a user agent is any software, acting on behalf of a user, which "retrieves, renders and facilitates end-user interaction with Web content". A user agent is therefore a special kind of software agent. Some prominent examples of u ...

s, typically mobile devices. XHTML Basic is a subset of XHTML 1.1, defined using XHTML Modularization including a reduced set of modules for document structure, images, forms, basic tables, and object support. XHTML Basic is suitable for

mobile phone A mobile phone, cellular phone, cell phone, cellphone, handphone, hand phone or pocket phone, sometimes shortened to simply mobile, cell, or just phone, is a portable telephone that can make and receive telephone call, calls over a radio freq ...

s, PDAs,

pager A pager (also known as a beeper or bleeper) is a wireless telecommunications device that receives and displays alphanumeric or voice messages. One-way pagers can only receive messages, while response pagers and two-way pagers can also acknowl ...

s, and settop boxes. It has replaced WML and C-HTML as more compliant user agents have been developed. One large advantage XHTML Basic has over WML and C-HTML is that XHTML Basic pages can be rendered differently in

web browser A web browser is application software for accessing websites. When a user requests a web page from a particular website, the browser retrieves its files from a web server and then displays the page on the user's screen. Browsers are used on ...

s and on handhelds, without the need for two different versions of the same page. The initial specification had been released in 2000. In 2006, the specification was revised to version 1.1. Six new features have been incorporated into the language in order to better serve the small-device community. The latest supersedition of the specification held by the W3C has been performed in 2018.

DOCTYPE

To validate as XHTML Basic, a document must contain the following Document Type Declaration, or DOCTYPE: :

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN"
"http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd">

A complete

valid Validity or Valid may refer to: Science/mathematics/statistics: * Validity (logic), a property of a logical argument * Scientific: ** Internal validity, the validity of causal inferences within scientific studies, usually based on experiments ** ...

and well-formed example is: Hello

Hello world.

Served with a

MIME Multipurpose Internet Mail Extensions (MIME) is an Internet standard that extends the format of email messages to support text in character sets other than ASCII, as well as attachments of audio, video, images, and application programs. Messa ...

type of "application/xhtml+xml".

XHTML-Print

XHTML-Print, which became a W3C Recommendation in September 2006, is a specialized version of XHTML Basic designed for documents printed from information appliances to low-end printers.

External links

XHTML Basic

An Overview of Mobile Versions of XHTML

W3C Mobile Web Best Practices
(for XHTML Basic 1.1)

References

{{reflist XHTML World Wide Web Consortium standards

DOCTYPE

XHTML-Print

See also

External links

References