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IE11-friendly Grid Layout

by FilmFiddler

HTML

<section id="page">
  <header>Header</header>
  <nav>Navigation</nav>
  <div id="main">Main area</div>
  <footer>Footer</footer>
</section>

CSS

#page {
  display: -ms-grid;
  display: grid;
  width: 100%;
  height: 250px;
  -ms-grid-rows: 50px 1fr 30px;
  grid-template-rows: 50px 1fr 30px;
  -ms-grid-columns: 150px 1fr;
  grid-template-columns: 150px 1fr;
}
#page > header {
  -ms-grid-column: 1;
  -ms-grid-column-span: 2;
  -ms-grid-row: 1;
  grid-column: 1/3;
  grid-row: 1;
  background-color: #8ca0ff;
}
#page > nav {
  -ms-grid-column: 1;
  -ms-grid-row: 2;
  -ms-grid-row-span: 2;
  grid-column: 1;
  grid-row: 2/4;
  background-color: #ffa08c;
}
#page #main {
  -ms-grid-column: 2;
  -ms-grid-row: 2;
  grid-column: 2;
  grid-row: 2;
  background-color: #ffff64;
}
#page > footer {
  -ms-grid-column: 2;
  -ms-grid-row: 3;
  grid-column: 2;
  grid-row: 3;
  background-color: #8cffa0;
}