src/template.html

<!doctype html>
<html lang='en'>
<head>
  <!-- Google Tag Manager - Paste this code as high in the <head> of the page as possible: -->
  <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
  new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
  j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
  'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
  })(window,document,'script','dataLayer','GTM-K873LXP');</script>
  <!-- End Google Tag Manager -->

	<meta charset='utf-8'>
	<meta name='viewport' content='width=device-width,initial-scale=1.0'>
	<meta name='theme-color' content='#333333'>

	%sapper.base%

	<!-- <link rel='stylesheet' href='global.css'> -->
	<link rel='manifest' href='manifest.json' crossorigin='use-credentials'>
	<link rel='icon' type='image/png' href='favicon.png'>

	<!-- Sapper generates a <style> tag containing critical CSS
	     for the current page. CSS for the rest of the app is
	     lazily loaded when it precaches secondary pages -->
	%sapper.styles%

	<!-- This contains the contents of the <svelte:head> component, if
	     the current page has one -->
	%sapper.head%
</head>
<body>
  <!-- Google Tag Manager (noscript) paste this code immediately after the opening <body> tag: -->
  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-K873LXP"
  height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
  <!-- End Google Tag Manager (noscript) -->
	<!-- The application will be rendered inside this element,
	     because `src/client.js` references it -->
	<div id='sapper'>%sapper.html%</div>

	<!-- Sapper creates a <script> tag containing `src/client.js`
	     and anything else it needs to hydrate the app and
	     initialise the router -->
	%sapper.scripts%
</body>
</html>