return parsers.valueType(v) === parsers.TYPES.KEYWORD &&
(v.toLowerCase() === 'scroll' || v.toLowerCase() === 'fixed' || v.toLowerCase() === 'inherit');
};
if (!isValid(v)) {
return;
}
this._setProperty('background-attachment', v);
},
return this.getPropertyValue('background-attachment');
},
enumerable: true,
configurable: true
};