Introduction to HTML

HyperText Markup Language, is the language used to create webpages (electronic documents). It is not a programming language, but rather than It a collection of tags (some people refer as elements). It is a formal recommendation by W3C (World Wide Web Consortium) ,the organisation charged with designing and maintaining the language.

HyperText is the method by which you move around on the web" by clicking on special text called hyperlinks which bring you to the next page. The fact that it is hyper just means it is not linear " i.e. you can go to any place on the Internet whenever you want by clicking on links " there is no set order to do things in.

Markup is what HTML tags do to the text inside them. They mark it as a certain type of text (italicised text, for example).

General Purpose Example:

Let's consider an example, in the real world. Suppose we have a room. In this room, bricks are the key elements of the room. So bricks are our HTML tags. The room is painted with orange color. This process is relevant to designing of the webpage which is possible with CSS. Now at the entrance of the room we applied lock system, to authorize the person whether he/she could be able to enter or not. In case of web pages, this process is possible with PHP.

HISTROY

In 1980, physicist Tim Berners-Lee, proposed and prototyped name as ENQUIRE, a system for CERN (the European Laboratory for Particle Physics in Geneva, Switzerland) researchers to use and share documents. In 1989, Berners-Lee wrote a memo proposing an Internet-based hypertext system. Berners-Lee specified HTML and wrote the browser and server software in late 1990.

What is XHTML

A doctype indicator must be included in all documents

tag names must be in lowercase

all attributes must be in lowercase

all documents must be properly structured

all tags must be properly nested

all tags must be closed

all attributes must be quoted the tag must come first in the tag.

Basic Structure

Sagittarius

Sulcation