narrow {
	display: block;
	max-width: 600px;
	margin: 0 auto;
}

columns {
	display: block;
	-webkit-column-count: 2;
	-moz-column-count: 2;
	column-count: 2;
	-webkit-column-gap: 25px;
	-moz-column-gap: 25px;
	column-gap: 25px;
}