jQuery(document).ready(function ($){
var _inline_css='<style data-type="zk-custom-css">';
$(document).find('.ef4-inline-css[data-css]').each(function(){
var _this=$(this);
_inline_css +=_this.attr('data-css');
_this.remove();
});
_inline_css +="</style>";
$('head').append(_inline_css);
});