code: function CssFlagsClass() {
        var _this;
  
        var ua = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
        var flags = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
        var cssFlagsPrefix = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'flags';
  
        _classCallCheck(this, CssFlagsClass);
  
        _this = _possibleConstructorReturn(this, _getPrototypeOf(CssFlagsClass).call(this, ua));
        _this._flags = flags;
        _this._cssFlagsPrefix = cssFlagsPrefix;
        return _this;
      }
docs: Creates an instance of CssFlagsClass.
  @param {any} [ua=null]
  @param {any} [flags={}]
  @param {string} [cssFlagsPrefix='flags']
  
  @memberOf CssFlagsClass