placeholder in input for mailchimp widget

//add placeholder for subscribe form
  $(".widget_ns_mailchimp input").focus(function(){  
        showEmptyLabels();
        $(this).siblings("label").stop().fadeOut();
    });
    $(".widget_ns_mailchimp input").blur(function(){	
        showEmptyLabels();
    });
    $(".widget_ns_mailchimp label").bind("click", function() {
        $(this).siblings("div").find("input, textarea").focus();	
    });
    function showEmptyLabels() {
        $(".widget_ns_mailchimp input").each(function(){
            if( $(this).val() == "") {
                $(this).siblings("label").fadeIn();
            }
        });
    }

style.css

.widget_ns_mailchimp label {
position: absolute;
margin-top: 8px;
margin-left: 10px;
display: inline;
opacity: 1;
}