HTML 4.01

1
HTML 4.01

• Student Ling Liao
• 2003.9.22

2
Overview

• Introduction
• An example of HTML
• Problems of HTML
• Summary

3
What is HTML?

• The Hypertext Markup Language
• (HTML) is a simple markup
• language used to create hypertext
• documents that are platform
• independent.

4
A Brief History of HTML

• HTML was originally developed by Tim Berners
• Lee while at CERN, and popularized by the Mosaic
  
• browser developed at NCSA. During the course of
• the 1990s it has blossomed with the explosive
• growth of the Web. During this time, HTML has
• been extended in a number of ways.
• CERN European Laboratory for Particle Physics

5
Previous Versions of HTML

• HTML 2.0
• It was developed by the IETF's HTML
• Working Group, which closed in 1996.It
• sets the standard for core HTML features
• based upon current practice in 1994.
• IETF Internet Engineering Task Force

6
Previous Versions of HTML

• HTML 3.2
• It added widely-deployed features such as
• tables, applets, text-flow around images,
• superscripts and subscripts, while providing
• backwards compatibility with the existing
• HTML 2.0 Standard.

7
Previous Versions of HTML

• HTML 4.0
• It extends HTML with mechanisms for style
• sheets, scripting, frames, embedding objects,
• improved support for right to left and mixed
• direction text, richer tables, and enhancements
• to forms, offering improved accessibility
• for people with disabilities.

8
What we can do by using HTML

• Publish online documents with headings, text,
  tables, lists, photos, etc.
• Find online information via hypertext links.
• Include spread-sheets, video clips, sound clips,
  and other applications directly in their
  documents.

9
What we can do by using HTML

• Design forms for conducting transactions with
  remote services, for use in searching for
  information, making reservations, ordering
  products, etc.

10
HTML Containers

• ltHTMLgt------------------------------container1
• ltHEADgt----------------- container2
• lt/HEADgt----------------- container2
• ltBODYgt---------- container3
• lt/BODYgt--------- container3
• lt/HTMLgt-------------------------------- container1

11
Problems of HTML

• A similar HTML source was displayed in different
  ways depending on what browser was used.
• Some browser manufactures developed HTML
  facilities which were not recognized by other
  browsers.
• It was almost impossible to discern any semantics
  within a web page.

12
Summary

• Definition of HTML
• Use of HTML
• Example of HTML
• Problems of HTML
• Any questions?

13
Reference(1)

• Darrel Ince Developing Distributed and
  E-commerce Applications
• Addison Wesley, 2002
• Web Design Tools and Techniques
• Peter Kentie, 2002
• http//www.w3.org/TR/REC-html40/intro/intro.htmlh
  -2.2

14
Reference(2)

• http//ftp.ics.uci.edu/pub/ietf/html/
• http//www.lib.tsinghua.edu.cn/chinese/INTERNET/HT
  ML/Table/html_design.html
• http//www.w3.org/MarkUp/