jquery: get elements by class name and add css to each of them

I have a certain number of div boxes that all have the same class name. I am trying to apply something to them all but have no luck. The code I constructed so far is

$(document).ready(function(){
    elements = $('div.easy_editor');
    elements.each(function() { $(this).css("border","9px solid red"); });
    //elements[0].css("border","9px solid red");
});

Could you please tell me what I am doing wrong