.column-group {
	width: 100%;
	overflow: hidden;
}

.column {
	float: left;
	margin-right: 5%;
	width: 100%;
}

.column-group > br,
.column-group > p {
	display: none;
}

.column.last {
	margin-right: 0;
}

.columns-2 .column { width: 47.5%; } /* ( 100 - $margin * ( $num_cols - 1 ) ) / $num_cols */
.columns-3 .column { width: 30%; }
.columns-4 .column { width: 21.25%; }

.columns-3 .column-span-2 { width: 65%; } /* $width * $span + $margin * ( $span - 1 ) */
.columns-4 .column-span-2 { width: 47.5%; }
.columns-4 .column-span-3 { width: 73.75%; }