The image-renderingproperty for CSS specifies a hint to the user-agent about what aspects of an image are most important to preserve when the image is scaled, to aid the user-agent in the choice of an appropriate scaling algorithm.
The image should be scaled with an algorithm that maximizes the appearance of the image.
high-quality
Identical to smooth, but with a preference for higher-quality scaling.
crisp-edges
The image must be scaled with an algorithm that preserves contrast and edges in the image, and which does not smooth colors or introduce blur to the image in the process.
pixelated
The image must be scaled with the "nearest neighbor" or similar algorithm, to preserve a "pixelated" look as the image changes in size.