 <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>nth Child Example</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <div class="main">
        
    </div>
</body>
</html>

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>nth Child Example</title>
	<link rel="stylesheet" href="style.css">
	</head>
	<body>
	<div class="main">

	</div>
	</body>
	</html>