.column {
	float: left;
	width: 45%;
	margin-right: 5%;
	border-top-width: thin;
	border-right-width: thin;
	border-bottom-width: thin;
	border-left-width: thin;
	border-top-style: dotted;
	border-right-style: dotted;
	border-bottom-style: dotted;
	border-left-style: dotted;
	overflow: auto;
}