background-position If a background image has been specified, this property specifies its initial position. If only one value is specified, the second value is assumed to be center. If at least one value is not a keyword, then the first value represents the horizontal position and the second represents the vertical position.

]]> [ , ]*;]]>]]>top | bottom

[ <percentage> | <length> | left | center | right ] [ <percentage> | <length> | top | center | bottom ]?

[ center | [ left | right ] [ <percentage> | <length> ]? ] && [ center | [ top | bottom ] [ <percentage> | <length> ]? ]

Negative <percentage> and <length> values are allowed.

]]>0% for the vertical position if one or two values are given, otherwise specifies the top edge as the origin for the next offset.]]>100% for the horizontal position if one or two values are given, otherwise specifies the right edge as the origin for the next offset.]]>100% for the vertical position if one or two values are given, otherwise specifies the bottom edge as the origin for the next offset.]]>0% for the horizontal position if one or two values are given, otherwise specifies the left edge as the origin for the next offset.]]>50% (left 50%) for the horizontal position if the horizontal position is not otherwise specified, or 50% (top 50%) for the vertical position if it is.]]>]]>background-size.]]>]]>2cm 1cm, the upper left corner of the image is placed 2cm to the right and 1cm below the upper left corner of the background positioning area.]]>