The HTML metadata tags describe the configuration specific to your website and not specific content that appears in the browser. In other words, they describe how content should appear and how your website should be portrayed to automated programs in the outside world, but not the actual content.
Most HTML metadata tags should come before the <body> tag group; however, there are a few exceptions: The comment tag, <script> tag, <link> tag, and <style> tag can appear anywhere in your website.
Note that these HTML metadata tags do not accept any of the global attributes defined earlier.
The <!doctype> tag is a special preamble tag to your HTML web page. Called a document-type definition (DTD), it instructs the web ...