How to not enable toggle class at first?

$(document).ready(function(){
  $("#summary").click(function(){
    $(this).toggleClass('clicked');
  });
});

.clicked {
  background-color: red;
}

<script src="http://ift.tt/1g1yFpr"></script>
        
<div id="summary">
  <div class="clicked">111</div>
  <div class="clicked">222</div>
</div>

How to not set beckoned-color to red when html page load.Only change it to red when click on its div?

via Chebli Mohamed