code: function (selector, property, expected, hash) {
      this.actionQueue.push(this.webdriverClient.element.bind(this.webdriverClient, selector));
      this.actionQueue.push(this.webdriverClient.cssProperty.bind(this.webdriverClient, property));
      this.actionQueue.push(this._cssCb.bind(this, selector, property, hash, expected));
      return this;
    }
docs: Checks if an element has the expected css property/value pairs
  
  @method css
  @param {string} selector Selector expression to find the element
  @param {string} property The css property to check
  @param {string} expected The expected css value
  @param {string} hash Unique hash of that fn call
  @chainable