Specifies the position of the background of the object.
Integer value = object.put_backgroundPosition( v);Integer value = object.get_backgroundPosition(* sPosition);
One or two of the values listed in Possible Values.
Floating-point number, followed by a supported length unit.
Integer, followed by a percent sign (%). The value is a percentage of the width or height of the object.
Value Meaning 0% 0%
Vertical alignment value.
Value Meaning top
Vertical alignment is at the top.
Vertical alignment is centered.
Vertical alignment is at the bottom.
Horizontal alignment value.
Value Meaning left
Horizontal alignment is to the left.
Horizontal alignment is centered.
Horizontal alignment is to the right.
[ [ percentage | length | left | center | right ] [ percentage | length | top | center | bottom ]? ] | [ [ left | center | right ] || [ top | center | bottom ] ]
|Applies To||All elements|
|Initial Value||0% 0%|
- CSS 2.1, Section 5.3.6
If only one value is set, that value applies to the horizontal coordinate, and the vertical is set to "50%". If both values are set, the first value applies to the horizontal coordinate and the second value applies to the vertical.
Setting the values to "0% 0%" (initial value) positions the IHTMLRuleStyle::backgroundImage to the upper left corner of the element's content block, which includes the padding.
Setting the background position using pixels positions the upper-left of the image at the specified x and y coordinates within the parent element. As the coordinates increase, the image moves to the right and down the visible area. By contrast, setting the background position with percentages uses a corresponding point on the image. At a position of "50% 50%" the image is effectively centered within the visible area.
This property can be set with the other background properties using the IHTMLRuleStyle::background composite property.
Starting in Windows Internet Explorer 9, the background of an element can have multiple layers. The number of layers is determined by the number of comma-separated values in the IHTMLRuleStyle::backgroundImage property. Each of the images is sized, positioned, and tiled according to the corresponding value in the other background properties (IHTMLRuleStyle::backgroundAttachment, IHTMLCSSStyleDeclaration::backgroundClip, IHTMLCSSStyleDeclaration::backgroundOrigin, IHTMLRuleStyle::backgroundPosition, IHTMLRuleStyle::backgroundRepeat, and IHTMLCSSStyleDeclaration::backgroundSize). The first image in the list is the layer closest to the user, the next one is painted behind the first, and so on.
Minimum supported client
Minimum supported server
|Windows Server 2003|
Build date: 11/12/2012