title: Purpose of the <head> and <body> tags
body: <p>I want to know what is the purpose of head and body tag.</p>
  
  <p>Like when i use <code>&lt;title&gt;</code> tag in <code>&lt;body&gt;</code> section ,i got the same thing and when i  use <code>&lt;p&gt;</code> tag in <code>&lt;head&gt;</code> section ,that i got the same thing which i used to get in <code>&lt;body&gt;</code> section,So what is concept to define a body or head section.</p>
  
  <p>Or It is only understanding that this kind of tag will use in body section and these tag will be used in head section.</p>
  
  <p>It will be better if you can provide me concept document too for this.</p>