Thursday 4 July 2013

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History of HTML

Have you ever thought what lies behind a web page?Which technology is used as a back end to write the web pages.We need a language to create the website.HTML is the most widely used language to design web contents for the Internet.
IBM sowed the seed for HTML in the early 1980s.Initialy,it was known by the name called GML(General Mark-up Language).It was a powerful language that aimed at creating a document in which one could mark the title,headings,text,font selection and much more.In 1986,this concept got standardization by ISO and was renamed to SGML(Standard Generalized Mark-up Language).In 1989,Sir Tim Berners-Lee and his team redesigned this language and named it as HTML(Hyper Text Mark-up Language).
HTML       : HTML is complete code package that allows a user to create web pages.It includes text and      
                    Graphics.You can add links to your web pages. Hyperlinks are the Highlighted text segments
                    or Images that connect a page to other pages on the web.Let us analyse the word HTML.
Hyper text :Hyper Text is the text used to link various web pages.It is the text on a web page,which on
                  clicking opens a new web page.
Mark-up   :It means highlighting the text either by underlining or displaying it in different colours,or both.
Language  :It refers to the mode of communication between web pages.Html has its own syntax and rules.

Structure of HTML Document:

  • The HTML document starts with<HTML> tag and ends with </HTML>tag.Each docume
    nt is considered to be a single page.Everything is written within these tags.If the commands are not enclosed in tags,then a web browser will assume the commands as simple text.The HTML page is divided into two sections:Header<HEAD>,and the body<BODY>
  • The Header is where you put information that is important about web page,but you will not able to see in your browser window.
  • The <TITLE> tag has to be given within the <HEAD> tags.It contains the title of the document.The title short and less than 64 characters.The <TITLE> tag changes the text that appears on the top of your browser,but not in the actual viewing pane.
  • The <HEAD> is the first element contained inside the <HTML> element.It contains no text within itself.
  • The <BODY> tag contains the text which gets displayed on the web page along with the other tags and attributes.In the <BODY> tag,we use formatting elements,images,heading,list etc. to enhance the appearance of the web page.
  • Every opening tag must have an ending tag.The closing tag has a forward slash(/).However,some tags have only an opening tag.
Let's know more
HTML 5 was introduced on January 18,2011.HTML 5 contains features like video playback and drag-and-drop that have been previously dependent on third-party browser plug-ins-such as Adobe Flash etc.  

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