HTML query

Replies

• 

  Mahesh Dahale

  !DOCTYPE is a top level tag that identifies which version of HTML or XHTML the document is using (called DTD).
  HTML and XHTML come in a variety of versions
  
  DTD stands for "Document Type Definition" and is a tool used by web browsers to determine what set of "rules" to use when reading the document. These "rules" are actually machine language that layout the legal structure,
  elements and attributes of a type of HTML or XHTML.
• 

  Manish Goyal

  mahesh_dahale

  !DOCTYPE is a top level tag that identifies which version of HTML or XHTML the document is using (called DTD).
  HTML and XHTML come in a variety of versions
  
  DTD stands for "Document Type Definition" and is a tool used by web browsers to determine what set of "rules" to use when reading the document. These "rules" are actually machine language that layout the legal structure,
  elements and attributes of a type of HTML or XHTML.

  Thanks Mahesh...
  But is it necessary to mention this?
  I mean ..I have also created website for my college..at that time i have not use this
  but there was no problem
  or it is standard?
• 

  Mahesh Dahale

  Not having a Doctype will prevent a page from validating.
  Validated HTML is important for search engine indexing.
  When the !DOCTYPE tag is omitted most browsers will attempt to guess at which language the document was written in. When forced to guess at the !DOCTYPE, the browser will render pages much slower and often in error.
  If the !DOCTYPE cannot be determined by the browser, it will default into "quirks" mode parsing. Quirks mode parsing is more forgiving, but can often render code in a way not intended by the author.
• 

  Manish Goyal

  Thanks...mahesh..i