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12th HSC for 2020 and 2021 batch HTML theory .part 1

 What is HTML ?

▪ The HTML is used to create world wide web document .
▪ Using this language user can creat web pages which can view in web browser.
▪ HTML is not a programming language in real sense .
▪ It is set of code that is used to creat document then it can be publish on world wide web .

Advantages of HTML
• No special software is needed .
• Easy to learn and also for implementation .
• Contain a powerful formatting facilities.
• HTML pages updated easily without changing whole document.
• Finding error is easy in HTML.
• It will not cost anything for its use .
• There is no expensive licenses to buy or to upgrade .

Disadvantages of HTML
[ July 2017,06,09,mar-14] HTML is not a programming language in real sense.
Any simple calculation can no be done in HTML .
It can not be use to print even dates.
Interactive web pages can not build in HTML.
The web pages can be develop in HTML but can not behave like an application.

What are the tags ?
Tag is a simple unit of markup language .
It is a set of sysmbols defined in HTML they have a specific meaning .
Tags are nothing but instructionthat are written directly into text edition.
In HTML every tag is started with < sign followed by keyboard and always end with > sing.
That symbols together called as angle brakets.
Ex :<html> ,<H1>,<body>.

Example
<I>  is an italic tag the text written using this tag and also end with  </I>  displayed in italic mode

   <I> html </I>.

So html will display like ............->html 

Tag can be nested within each other. Lilke <b><I>hello</I></b>

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