If you have all these 4 modules published at the same time, then you can safely replace <?php echo $rowclass_small.$rowclass;?> with large-3 (mind the space).
If you are not sure about this or you are planning to change this in the near future then open the: includes/variations.php file and locate the following block of code.
switch($cols){
case 4;
$rowclass_large = ' large-4';
$rowclass_small = ' large-2';
$rowclass = '';
//$rowclass = ' large-3';
break;
case 3;
$rowclass_large = '';
$rowclass_small = '';
$rowclass = ' large-4';
break;
case 2;
$rowclass_large = '';
$rowclass_small = '';
$rowclass = ' large-6';
break;
case 1;
$rowclass_large = '';
$rowclass_small = '';
$rowclass = ' large-12';
break;
}
You can change it to
switch($cols){
case 4;
$rowclass_large = ' large-3';
$rowclass_small = ' large-3';
$rowclass = '';
//$rowclass = ' large-3';
break;
case 3;
$rowclass_large = '';
$rowclass_small = '';
$rowclass = ' large-4';
break;
case 2;
$rowclass_large = '';
$rowclass_small = '';
$rowclass = ' large-6';
break;
case 1;
$rowclass_large = '';
$rowclass_small = '';
$rowclass = ' large-12';
break;
}
1st solution is easier, while the second is more future-proof.
