text: 'use strict';
  
  function cssHelper(){
    /* jshint validthis: true */
    var result = '';
    var path = '';
  
    for (var i = 0, len = arguments.length; i < len; i++){
      path = arguments[i];
  
      if (Array.isArray(path)){
        result += cssHelper.apply(this, path);
      } else {
        if (path.substring(path.length - 4, path.length) !== '.css') path += '.css';
        result += '<link rel="stylesheet" href="' + this.url_for(path) + '" type="text/css">\n';
      }
    }
  
    return result;
  }
  
  module.exports = cssHelper;