jdanyow/index.html

## index.html
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>GistRun</title>
  <link rel="stylesheet" href="https://unpkg.com/@primer/css@16.3.0/dist/primer.css"  />

  <style>
    @media screen and (min-width: 560px) {
      .productivity-layout {
        display: grid;
        grid-template-columns: auto 1fr;
        grid-template-rows: auto auto 1fr auto auto;
        grid-template-areas:
          'aside system-header'
          'aside header'
          'aside main'
          'aside footer'
          'aside system-footer';
      }

      .layout--header {
        grid-area: header;
      }

      .layout--footer {
        grid-area: footer;
      }

      .layout--system-header {
        grid-area: system-header;
      }

      .layout--system-footer {
        grid-area: system-footer;
      }

      .layout--aside {
        grid-area: aside;
        position: sticky;
        top: 0;
        height: 100vh;
        border: 3px solid red;
      }

      .layout--main {
        grid-area: main;
        border: 3px solid blue;
      }
    }
  </style>
</head>
<body class="productivity-layout">
  <aside class="layout--aside">
    <nav>
      <ul>
        <li>one</li>
        <li>two</li>
        <li>three</li>
        <li>four</li>
      </ul>
    </nav>
  </aside>
  <div class="layout--system-header">
    system header
  </div>
  <header class="layout--header">
    header content
  </header>
  <main id="main" class="layout--main">
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
    <p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
  </main>
  <footer class="layout--footer">
    footer content
  </footer>
  <div class="layout--system-footer">
    system footer content
  </div>
</body>
</html>
	<!doctype html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<title>GistRun</title>
	<link rel="stylesheet" href="https://unpkg.com/@primer/css@16.3.0/dist/primer.css" />

	<style>
	@media screen and (min-width: 560px) {
	.productivity-layout {
	display: grid;
	grid-template-columns: auto 1fr;
	grid-template-rows: auto auto 1fr auto auto;
	grid-template-areas:
	'aside system-header'
	'aside header'
	'aside main'
	'aside footer'
	'aside system-footer';
	}

	.layout--header {
	grid-area: header;
	}

	.layout--footer {
	grid-area: footer;
	}

	.layout--system-header {
	grid-area: system-header;
	}

	.layout--system-footer {
	grid-area: system-footer;
	}

	.layout--aside {
	grid-area: aside;
	position: sticky;
	top: 0;
	height: 100vh;
	border: 3px solid red;
	}

	.layout--main {
	grid-area: main;
	border: 3px solid blue;
	}
	}
	</style>
	</head>
	<body class="productivity-layout">
	<aside class="layout--aside">
	<nav>
	<ul>
	<li>one</li>
	<li>two</li>
	<li>three</li>
	<li>four</li>
	</ul>
	</nav>
	</aside>
	<div class="layout--system-header">
	system header
	</div>
	<header class="layout--header">
	header content
	</header>
	<main id="main" class="layout--main">
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	<p>some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content some content </p>
	</main>
	<footer class="layout--footer">
	footer content
	</footer>
	<div class="layout--system-footer">
	system footer content
	</div>
	</body>
	</html>