HTML and CSS Reference
In-Depth Information
Name
background-position
Values:
<bg-position> [ , <bg-position> ]*
Expansions:
<bg-position>
[ [
top
|
bottom
] | [ <percentage> | <length> |
left
|
center
|
right
] [ <percentage> |
<length> |
top
|
center
|
bottom
]? | [
center
| [
left
|
right
] [ <percentage> | <length> ]?
] && [
center
| [
top
|
bottom
] [ <percentage> | <length> ]? ] ]
Initial value:
0% 0%
Applies to:
All elements
Inherited:
No
Percentages:
Refer to the corresponding point on both the element and the origin image
Computed value:
The absolute length offsets if <length> is declared; otherwise, percentage values
Description:
Defines the position(s) of one or more backgrounds' origin images (as defined by
background-image
); this is the point from which any background repetition or tiling will oc-
cur. Percentage values define not only a point within the element, but also the same point in
the origin image itself, thus allowing (for example) an image to be centered by declaring its
position to be
50% 50%
. When percentage or length values are used, the first is always the ho-
rizontal position, and the second the vertical. If only one value is given, it sets the horizontal
position, while the missing value is assumed to be either
center
or
50%
. Negative values are
