index.html

<!doctype html>
<html lang="en">
<head>
    <!-- Required meta tags -->
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
    <link rel="stylesheet" href="css/style.css" />    
</head>
<body>
	<div class="main_wrapper">
		<div class="align_center">
			<h1>Align Content Vertically Center</h1>
			<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Veniam eum ipsum aspernatur facere aliquid eius vitae ipsam rerum porro debitis facilis voluptate blanditiis, consequuntur recusandae optio assumenda iste sequi magni!</p>
		</div>
	</div>
</body>
</html>