HTML, markup language of Web pages and interfaces
Defined for web pages, it is also a standard format for any documents displayable locally by a web browser or a recent word processor and now is also a langage of user interface for web applications, and has replaced Flash.
HTML, the hypertext markup language is a subset of SGML, (invented by IBM
in 1969) defined by the W3C consortium. It is a document description language,
that uses tags for properties. This is the format recognized by web browsers.
DHTML, dynamic HTML, is the combination of HTML and JavaScript. The CSS,
cascading style sheet, adds the style sheet feature of word processor to
HTML.
Features of HTML
- Tag based, uses < > for delimiters.
- Its syntax is derived from that of XML, but tags are not necessarily closed.
- Unrecognized statements are ignored by the rendering engine (from the specification).
- Unlimited embedding of constructs.
- Unlike XML, tags have a predefined meaning that is standard and recognized by user agents (mainly browsers).
Sample code
The minimal valid code for displaying "Hello World:".
<!DOCTYPE html>
<html> <head> <meta charset="utf-8"> <title>Hello by Scriptol.com</title> </head> <body> Hello World! </body> </html>
Tools and documentation
- W3C
Site of the consortium that defines the language. Specifications of all standards and manuals. - Validator
Check the validity of your code. - Kompozer
A free open source, well-designed, WYSIWYG HTML editor. - HTML 5 Forms
Code of all form objects to check if they are implemented in the browser.
- Firefox
Extensions for Webmasters
Adding tools to Firefox for checking HTML pages.
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