Shorthand Background Property with CSS
The background property is shorthand for specifying the various longhand background sub-properties just introduced (i.e., background-clip, background-color, background-image, background-origin, background- position, background-repeat, background-size, and background- attachment). One or more of these sub-properties can be specified in any order in a space-separated list. The only exception is that the value for background-size must be specified after [ [ ...]