Apple's Safari and Google's Chrome web browsers have been updated to offer support for CSS's image-set specification, Webmonkey reports. The update enables support displays with higher pixel densities — notably, Apple's new Retina Macbook Pro. Chrome was optimized for Apple's Retina display in July, but the new standard allows the browser to detect a device's display and select the highest quality images automatically. The image-set specification also gauges a user's bandwidth to determine whether or not to serve Retina-quality images. Of course, adoption of the standard is largely dependent on developer support, but should Retina-quality displays become more pervasive, that may sooner rather than later.