Fix.

node_modules/cssstyle/lib/properties/background.js

@@ -1,19 +0,0 @@
-'use strict';
-
-var shorthandSetter = require('../parsers').shorthandSetter;
-var shorthandGetter = require('../parsers').shorthandGetter;
-
-var shorthand_for = {
-  'background-color': require('./backgroundColor'),
-  'background-image': require('./backgroundImage'),
-  'background-repeat': require('./backgroundRepeat'),
-  'background-attachment': require('./backgroundAttachment'),
-  'background-position': require('./backgroundPosition'),
-};
-
-module.exports.definition = {
-  set: shorthandSetter('background', shorthand_for),
-  get: shorthandGetter('background', shorthand_for),
-  enumerable: true,
-  configurable: true,
-};