<!DOCTYPE html>
<html ng-app="myApp">

<head>
  <script data-require="angular.js@*" data-semver="1.2.7" src="http://code.angularjs.org/1.2.7/angular.js"></script>
  <link rel="stylesheet" href="style.css" />
  <script src="script.js"></script>
</head>


<div ng-repeat="i in [0,1,2,3,4,5,6,7]" divider>
  Item {{i}}
</div>

<script>
  angular.module('myApp', [])
    .directive('divider', [
      function() {
        return {
          link: function(scope, elem, attr) {
           var si = scope.$index + 1;
				if( !(si % 2) ) angular.element(elem).after('<div class="clearfix visible-sm">--SM divider--</div>');	
				if( !(si % 3) ) angular.element(elem).after('<div class="clearfix visible-md">--MD divider--</div>');	
          }
        };
      }
    ]);
</script>

</html>
// Code goes here

/* Styles go here */