Overwriting Isotopes Boxes Positioning

http://stackoverflow.com/q/26965220/1144203

HTML

<script src="http://squaredoodletest.t15.org/JS/isotpoe.js"></script>
<div id="container">
  <div id="boxes-collection">
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
  </div>
</div>

CSS

#container{
    background-color: #333;
    width: 80%;
    height: auto;
    margin: 0 auto;
    position: relative;
     
 }

#boxes-collection{
    position:relative;
    left:35%;
    width:100%;
}

.box{
    width: 40px;
    height: 40px;
    background-color: #e74c3c;
    margin: 20px;
    
}

JavaScript

var $container = $('#container');
// init
$container.isotope({
  // options
  itemSelector: '.box',
  layoutMode: 'fitRows'
});