·www.zf.com /application/views/helpers/Css.php

<?php

class Zend_View_Helper_Css extends Zend_View_Helper_Abstract
{
    public function css($fileName = ''){

        $url = Mf_Configs_Config::getInstance()->getConfig('url');

        $cssDir = trim($url, '/').'/public/css/'.$fileName;

        return $cssDir;
    }


}