Starter code
The following markup is a basic AMP page.
<!doctype html>
<html amp lang="en">
  <head>
    <meta charset="utf-8">
    <script async src="https://cdn.ampproject.org/v0.js"></script>
    <title>Hello, AMPs</title>
    <link rel="canonical" href="https://amp.dev/documentation/guides-and-tutorials/start/create/basic_markup/">
    <meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1">
    <style amp-boilerplate>body{-webkit-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-moz-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-ms-animation:-amp-start 8s steps(1,end) 0s 1 normal both;animation:-amp-start 8s steps(1,end) 0s 1 normal both}@-webkit-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-moz-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-ms-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-o-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}</style><noscript><style amp-boilerplate>body{-webkit-animation:none;-moz-animation:none;-ms-animation:none;animation:none}</style></noscript>
  </head>
  <body>
    <h1 id="hello">Hello AMPHTML World!</h1>
  </body>
</html>
The body content is pretty straightforward, but there’s some additional code in the head. The required markup is broken down in the table below. Each AMP HTML document must:
| Rule | Description | 
Start with the <!doctype html> doctype.  |  Standard for HTML. | 
Contain a top-level <html ⚡> or <html amp> tag.  |  Identifies the page as AMP content. | 
Contain <head> and <body> tags.  |  While optional in HTML, this is required in AMP. | 
Contain a <meta charset="utf-8"> tag right after the <head> tag.  |  Identifies the encoding for the page. | 
Contain a <script async src="https://cdn.ampproject.org/v0.js"></script> tag inside the <head> tag. As a best practice, you should include the script as early as possible.  |  Includes and loads the AMP JS library. | 
Contain a <link rel="canonical" href="$SOME_URL"> tag inside their <head>.  |  the href attribute should point to the page itself. This section exists for legacy reasons.  |  
Contain a <meta name="viewport" content="width=device-width" /> tag inside their <head> tag.  |  Specifies a responsive viewport. Learn more in Create Responsive AMP Pages. | 
Contain the AMP boilerplate code in their <head> tag.  |  CSS boilerplate to initially hide the content until AMP JS is loaded. | 
Click "Open this snippet in playground" under the example above to get started building our page!
 If you want to skip ahead, you can view the finished tutorial code here! 
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 Written by @crystalonscript