<div class="container">
		<h1>Checkout Form</h1>
		<form class="form cf">
			<section class="plan cf">
				<h2>Choose a plan:</h2>
				<input type="radio" name="radio1" id="free" value="free"><label class="free-label four col" for="free">Free</label>
				<input type="radio" name="radio1" id="basic" value="basic" checked><label class="basic-label four col" for="basic">Basic</label>
				<input type="radio" name="radio1" id="premium" value="premium"><label class="premium-label four col" for="premium">Premium</label>
			</section>
			<section class="payment-plan cf">
				<h2>Select a payment plan:</h2>
				<input type="radio" name="radio2" id="monthly" value="monthly" checked><label class="monthly-label four col" for="monthly">Monthly</label>
				<input type="radio" name="radio2" id="yearly" value="yearly"><label class="yearly-label four col" for="yearly">Yearly</label>
			</section>
			<section class="payment-type cf">
				<h2>Select a payment type:</h2>
				<input type="radio" name="radio3" id="credit" value="credit"><label class="credit-label four col" for="credit">Credit Card</label>
				<input type="radio" name="radio3" id="debit" value="debit"><label class="debit-label four col" for="debit">Debit Card</label>
				<input type="radio" name="radio3" id="paypal" value="paypal" checked><label class="paypal-label four col" for="paypal">Paypal</label>
			</section>	
			<input class="submit" type="submit" value="Submit">		
		</form>
	</div>

body{
	margin: 0;
	padding: 0;
	font-family: sans-serif;
	color: #333;
	background-color: #eee;
}

h1, h2, h3, h4, h5, h6{
	font-weight: 200;
}

h1{
	text-align: center;
	padding-bottom: 10px;
	border-bottom: 2px solid #2fcc71;
	max-width: 40%;
	margin: 20px auto;
}

/* CONTAINERS */

.container {max-width: 850px; width: 100%; margin: 0 auto;}
.four { width: 32.26%; max-width: 32.26%;}


/* COLUMNS */

.col {
  display: block;
  float:left;
  margin: 1% 0 1% 1.6%;
}

.col:first-of-type { margin-left: 0; }

/* CLEARFIX */

.cf:before,
.cf:after {
    content: " ";
    display: table;
}

.cf:after {
    clear: both;
}

.cf {
    *zoom: 1;
}

/* FORM */

.form .plan input, .form .payment-plan input, .form .payment-type input{
	display: none;
}

.form label{
	position: relative;
	color: #fff;
	background-color: #aaa;
	font-size: 26px;
	text-align: center;
	height: 150px;
	line-height: 150px;
	display: block;
	cursor: pointer;
	border: 3px solid transparent;
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
}

.form .plan input:checked + label, .form .payment-plan input:checked + label, .form .payment-type input:checked + label{
	border: 3px solid #333;
	background-color: #2fcc71;
}

.form .plan input:checked + label:after, form .payment-plan input:checked + label:after, .form .payment-type input:checked + label:after{
	content: "\2713";
	width: 40px;
	height: 40px;
	line-height: 40px;
	border-radius: 100%;
	border: 2px solid #333;
	background-color: #2fcc71;
	z-index: 999;
	position: absolute;
	top: -10px;
	right: -10px;
}

.submit{
	padding: 15px 60px;
	display: inline-block;
	border: none;
	margin: 20px 0;
	background-color: #2fcc71;
	color: #fff;
	border: 2px solid #333;
	font-size: 18px;
	-webkit-transition: transform 0.3s ease-in-out;
	-o-transition: transform 0.3s ease-in-out;
	transition: transform 0.3s ease-in-out;
}

.submit:hover{
	cursor: pointer;
	transform: rotateX(360deg);
}