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I need to know what is the use of <html> tag from the beginning of the webpage although website runs perfectly without these <html> </html> tags.
I knew that doctype is required but why this <html> tag is required.
The
<html>tag is not required.From the DTD:
The two
Os indicate that the start and end tags (respectively) are optional.The element, on the other hand, is required (but the language is designed so that browsers can imply it).
Since a DOM consists of a tree of nodes, you have to have one node (the root element) for everything else to hang from, and that is the html element.
It is also a really useful place to stick a
langattribute that will apply to the entire document.