:focus {
	outline-style: none;
}
#number {
	width: 200px;
	padding: 8px;
	border: 1px solid #ddd;
}	

input[type="submit"] {
	background: #08c;
	color: #fff;
	padding: 8px 20px;
	border: none;
	border-radius: 16px;
	cursor: pointer;
}

#output {
	font: 1em monospace;
}

body {
	padding: 20px;
}


#article {
	padding: 10% 30% 0 0;
}