layout1.html

<hgroup class="row">
  <header class="column grid_5"><h1>header</h1></header>
  <nav class="column grid_7"><p>nav</p></nav>
</hgroup>
<section class="row">
  <div class="column grid_6"><p>content</p></div>
  <div class="column grid_3"><p>aside</p></div>
  <div class="column grid_3"><p>aside</p></div>
</section>
<footer class="row">
  <div class="column grid_12"><p>footer</p></div>
</footer>