Document Layout, Header Elements, Section Headings, Block-oriented lements, Lists, inline elements, visual Markup, Hypertext links, Uniform Resource Locators (URL), images, Forms Tables, and Special Characters



HTML

The web design depends on web page authors and vendors sharing the same conventions for HTML. This has motivated joint work on specifications for HTML.HTML are originally developed under the Berners-Lee while at CEERN, and popularized by the Mosaic browser developed at NCSA. HTML 2.0 was developed under the guidance of the internet Engineering Task Force (IETF) to codify common practice in late 1994.

HTML+(1993) and HTML 3.0 (1995) proposed much richer versions of HTML.Despite never having received consensus in standards discussions, these drafts led to the adoption of a range of new features . The efforts of the word wide web designConsortium's HTML working Group to codify common practice in 1996 resulted in HTML 3.2(January 1997).

Most people agree that HTML document should work well across different   browsers with platform. Achieve interoperability lower cost to content providers since they must develop only one version of a document. If the effort to standardize is not made, there is much greater risk that the web will devolve into a proprietary world of incompatible formats, ultimately reducing the Web's commercialpotential for all participants. Each version of HTML has attempted to reflect greater consensus among industry players. This attempt ensures that the investment made by content provides will not be wasted and that their document will not become unreadable in a short period of time.

HTML has been developed with the vision that all types of devise should be able to use information on the web: PCs with graphic displays of varying resolution and co lour depths, cellular telephones, hand-held devices for speech for output and input, computers with high or low bandwidth, and so on.

Accessibility

As the Web community grows and its members diversify in their abilities with skills, it is crucial that the underlying technologies be appropriate to their specific needs. HTML has be designed to make Web page more nearby to folks with objective borders. HTML 4 developments moved by concern for accessibility include:

Better distinction between document structure and presentation, thus encouraging the use of style sheets instead of HTML presentation elements and attributes.

Better forms, including the addition   of access keys, the ability to group SELECT option semantically, the active to mark up a text description of an included object.

A new client-side image map mechanism that allows authors to integrate image and text links.

The requirement that ultimate text accompany images and image maps.

Support for title and language attributes on all elements.

Support for abbreviations and acronyms.

A wider range of target media, such as True Type Font, Braille, for use with style sheets.

Better tables including captions, column groups, and mechanisms to facilitate non-visual rendering.

Long descriptions of tables, images, frames, etc.