HTML5 doctype declaration, sample Template and Examples

The <!DOCTYPE> declaration is to tell the browser what version of HTML the page is written in.
(other versions include HTML4, XHTML 1 etc ). The browser uses this declaration to determine the best way to render the web page.

Here is the HTML5 doctype declaration.

<!DOCTYPE html>

A Simple HTML5 template with doctype

<!doctype html>
<html>
    <head>
        <meta charset="utf-8">
        <meta http-equiv="x-ua-compatible" content="ie=edge">
        <title></title>
        <meta name="description" content="">
        <meta name="viewport" 
         content="width=device-width, initial-scale=1">
    </head>
    <body>
        <h1>Your Heading</h1>
        <p>Your Content</p>

    </body>
</html>