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HTML 

              
                <header role="banner">
  <h1 class="fcurtain-identity">Fixed Curtains</h1>
  <nav role="navigation">
    <a href="">link 1</a>
    <a href="">link 2</a>
    <a href="">link 3</a>
  </nav>
</header>

<main role="main">
  <section class="fcurtain--cover fcurtain--callout">
    <h2>A Sassy Layout Pattern for Authors</h2>
    <p>Scroll down to learn more about this HTML template</p>
  </section>

  <section class="fcurtain">
    <header>
      <h1>Getting Started</h1>
    </header>
    <p>This template uses <abbr title="cascading stylesheets">CSS</abbr> properties for layout such as <a href="//caniuse.com/#search=flexbox"><code>flexbox</code></a> and <a href="//caniuse.com/#search=calc"><code>calc()</code></a> as well as the <code>fixed</code> value for <code>background-attachment</code>. I've also used the <a href="//caniuse.com/#search=nth-of-type"><code>nth-of-type()</code></a> selector to style each curtain's background image individually.</p>
    <p><b>Does it work on IE8?</b> You'll need to consider your own fallbacks for a minimum of IE8, but make sure to double check 9-11 as well. I didn't write IE fallbacks for you which is why you're getting this for free yo.</p>
    <p><b>What about that sweet <abbr title="responsive web design">RWD?</abbr></b> I'll let you take care of that business since it's a unique thing based on your unique needs. Once again it's free, but keep an eye our for a paid version in the future with better features like <abbr title="responsive web design">RWD</abbr>, Performance Optimizing, Additional Functionality and Support.</p>
    <p><b>What else is going on?</b> ARIA roles are baked in plus I made this template super clean for you to get started by ensuring removeable items are super easy to remove. Authors can also declare the height of the fixed panels using a Sass variable and passing either <code>fixed</code> or <code>full</code>. You're also on your own for a grid system should you choose to use one. Now all that's left to do is copy this Markup and Sass and get to work.</p>
  </section>

  <section class="fcurtain--cover fcurtain--callout">
    <h2>Go to 11</h2>
  </section>

  <section class="fcurtain">
    <header>
      <h1>Turn that volume up</h1>
    </header>
    <p>Wanna make this template really awesome? Why not add some media queries or even a fancy ass JavaScript thingy. You could also use something like the <code>picture</code> element or <code>srcset</code> to help control these massive background images for various screen dimensions. Anyways, here's some more lorem ipsum that I know you love so much.</p>
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio culpa, praesentium eius veniam odio recusandae sed deserunt fuga assumenda explicabo. Nobis omnis nulla illo enim, temporibus maxime qui repellat atque!</p>
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio culpa, praesentium eius veniam odio recusandae sed deserunt fuga assumenda explicabo. Nobis omnis nulla illo enim, temporibus maxime qui repellat atque!</p>
  </section>

  <section class="fcurtain--cover fcurtain--callout">
    <h2>Section Intro</h2>
  </section>

  <section class="fcurtain">
    <header>
      <h1>Section Title</h1>
    </header>
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio culpa, praesentium eius veniam odio recusandae sed deserunt fuga assumenda explicabo. Nobis omnis nulla illo enim, temporibus maxime qui repellat atque!</p>
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio culpa, praesentium eius veniam odio recusandae sed deserunt fuga assumenda explicabo. Nobis omnis nulla illo enim, temporibus maxime qui repellat atque!</p>
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio culpa, praesentium eius veniam odio recusandae sed deserunt fuga assumenda explicabo. Nobis omnis nulla illo enim, temporibus maxime qui repellat atque!</p>
  </section>

  <footer role="contentinfo">
    <small>Fixed Curtains ©2014 all rights reserved</small>
  </footer>
</main>
!

CSS 

              
                // Demo Crap
*{&:before, &:after{box-sizing: inherit;}}html{box-sizing: border-box;font-family:'Droid Serif',serif;font-size: 100%;line-height:1.5;}header[role="banner"]{padding: 20px;}footer[role="contentinfo"]{background:#253537;color:white;}h2{margin-bottom: 0;}nav a{color: #071A24;padding:0 5px;text-decoration: none;}


// Required Styles & Config
// READ FIRST:
// This demo uses normalize and autoprefixer. I strongly suggest that you find
// something to prefix junk for you otherwise you're writing it out by hand.

$fcurtain_lgscr: 640px;
$fcurtain_type: full; // accepts [full,fixed]
$fcurtain_height: null; // accepts px value if height is fixed (i.e. 340px)
$fcurtain_bg: #EFE99D;
$fcurtain_bgimg: (
  // panel position  : panel image
  1 : 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/392/mountain-peaks.jpg',
  3 : 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/392/geometric-mountains.jpg',
  5 : 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/392/mountain-gaze.jpg'
);


html,
body,
main {
  height: 100%;
}

header[role="banner"] {
  display: flex;
  align-items: center;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  width: auto;
  z-index: 1;
}

.fc-identity {
  flex: 5;
}

nav[role="navigation"] {
  flex: 5;
  text-align: right;
}

main[role="main"] > * {
  max-width: $fcurtain_lgscr;
  padding: 1.65em calc(50% - #{$fcurtain_lgscr/2});
}

.fcurtain--cover {
  @if $fcurtain_type == full {
    min-height: 100%;
  } @elseif $fcurtain_type == fixed {
    height: $fcurtain_height;
  }
  position: relative;
  background-size: cover;
  background-attachment: fixed;
  background-positon: center center;
  background-repeat: no-repeat;
  background-color: $fcurtain_bg;
  @each $key, $value in $fcurtain_bgimg {
    &:nth-of-type(#{$key}) {
      background-image: url(#{$value});
    }
  }
}

.fcurtain--callout {
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
}
!

JS
!
999px

Console