CSS Background Position
The background-position property is used to specify the starting position for a background image or gradient
A background-size has the following syntax
The position is set using an X and Y co-ordinate and be set using any of the units used within CSS.
|value% value%||A percentage for the horizontal offset is relative to (width of background positioning area - width of background image). A percentage for the vertical offset is relative to (height of background positioning area - height of background image) The size of the image is the size given by background-size.|
|valuepx valuepx||Offsets background image by a length given in pixels relative to the top left of the background positioning area|