index.html

<!doctype html>
<html>
	<head>
		<link rel="stylesheet" type="text/css" href="css/styles.css" />
	</head>
	<body>
		<div class="grid">
			<div class="row">
				<div class="column">1/12</div>
				<div class="column">1/12</div>
				<div class="column">1/12</div>
				<div class="column">1/12</div>
				<div class="column">1/12</div>
				<div class="column">1/12</div>
				<div class="column">1/12</div>
				<div class="column">1/12</div>
				<div class="column">1/12</div>
				<div class="column">1/12</div>
				<div class="column">1/12</div>
				<div class="column">1/12</div>
				<div class="column span-6">6/12</div>
				<div class="column span-6">6/12</div>
				<div class="column span-4">4/12</div>
				<div class="column span-4">4/12</div>
				<div class="column span-4">4/12</div>
			</div>
		</div>
	</body>
</html>