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Silvia Balzan
238 PointsWhat do you mean for meta informations about HTML doc into <head>?
HTML meaning of <head>
3 Answers

Giuseppe Nardella
17,790 PointsThe meta informations are informations about the document itself . The meta tag is used to define the author, the description, the keywords and other information that are not standardized with specific tags.

Chris Hall
Full Stack JavaScript Techdegree Student 11,442 PointsThe tag <html> is the container or root of the HTML document.

Ruben Gurdzhian
6,166 PointsThe "meta" tag is used to describe the html page (document) itself. It is not visible to the user, but can be parsed by search engines for example.
Here is a good article about meta tags usage
http://searchenginewatch.com/sew/how-to/2067564/how-to-use-html-meta-tags
Hope this helps