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I have learnt HTML recently, but not able to clear my concept about <!doctype>. Please explain <!doctype> in detail in plain English.

Nisse Engström
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Atish Raina
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    possible duplicate of [What's up, DOCTYPE?](http://stackoverflow.com/questions/414891/whats-up-doctype) – Joffrey Maheo Dec 03 '14 at 09:33
  • You may find [this page](http://stackoverflow.com/questions/6076432/why-do-i-need-a-doctype-what-does-it-do) useful. –  Dec 03 '14 at 09:33

2 Answers2

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It;s just the information for web browser about the opened document. Web browser needs to know what kind of document it opens and how to 'read' and display it properly.

KamilD
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<! doctype> tag is where your code declares to the browser what kind of standard rest of the code using. There are some kinds of html, like

  • HTML 5
  • HTML 4.01 Transitional
  • HTML 4.01 Frameset
  • XHTML 1.0 Strict
  • XHTML 1.0 Transitional
  • XHTML 1.0 Frameset
  • XHTML 1.1

Browsers used to treat codes differently. Its not that much important now but writing a good structured code doesn't hurt anyone.

More information here.

Community
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Emre Acar
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