.cols {
	float: left;
	margin: 0;
	position: relative;
	width: 100%;
}
 
.cols .col,
.cols .col-span {
	position: relative;
	float: left;
	padding: 0;
	overflow: hidden;
	box-sizing: border-box; *behavior: url(/core/scripts/boxsizing.htc);
	-moz-box-sizing: border-box;
}

.cols-1 .col { width: 100%; }
.cols-2 .col { width: 50%; }
.cols-3 .col { width: 33.333333%; }
.cols-4 .col { width: 25%; }
.cols-3 .col-span { width: 66.666666%; }
.cols-4 .col-span { width: 50%; }
.cols-4 .col-spans { width: 75% }

/* Overrides:
.cols {	width: 1000px; margin-bottom: 20px; margin-left: -20px; }
.cols .col { padding-left: 20px; }
*/