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Summary

The background-position CSS property sets the initial position for each defined background image, relative to the background position layer defined by background-origin.

Note: If the background-position property is set as a CSS property independently of the background shorthand property, and such an independent declaration is followed by a background shorthand property that omits a value for background-position, then the shorthand property resets background-position to its default value.

Initial value0% 0%
Applies toall elements. It also applies to ::first-letter and ::first-line.
Inheritedno
Percentagesrefer to the size of the background positioning area minus size of background image; size refers to the width for horizontal offsets and to the height for vertical offsets
Mediavisual
Computed valuea list, each item consisting of two keywords representing the origin and two offsets from that origin, each given as an absolute length (if given a <length>), otherwise as a percentage
Animatableyes, as a repeatable list of , a simple list of , a length, percentage or calc(); when both values are lengths, they are interpolated as lengths; when both values are percentages, they are interpolated as percentages; otherwise, both values are converted into a calc() function that is the sum of a length and a percentage (each possibly zero), and these calc() functions have each half interpolated as real numbers.
Canonical orderthe unique non-ambiguous order defined by the formal grammar

Syntax

/* Keyword values */
background-position: top;
background-position: bottom;
background-position: left;
background-position: right;
background-position: center;

/* <percentage> values */
background-position: 25% 75%;

/* <length> values */
background-position: 0px 0px;
background-position: 1cm 2cm;
background-position: 10ch 8em;

/* Multiple values */
background-position: 0px 0px, center;

/* Global values */
background-position: inherit;
background-position: initial;
background-position: unset;

Values

<position>
Is a <position>—that is, one to four values representing a 2D position in relation to the edges of the element's box. Relative or absolute offsets can be given. Note that the position can be set outside of the element's box.

Formal syntax

<position>#

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

Examples

Each of these three examples uses CSS background to create a yellow, rectangular element that contains a star image. In each example, the star image is in a different position. In addition, the third example illustrates how to specify positions for two different background images within one element.

HTML Content

<div class="exampleone">Example One</div>
<div class="exampletwo">Example Two</div>
<div class="examplethree">Example Three</div>

CSS Content

/* Shared among all DIVS */
div {
  background-color: #FFEE99;
  background-repeat: no-repeat;
  width: 300px;
  height: 80px;
  margin-bottom: 12px;
}

/* background-position examples */

/* These examples use the background shorthand CSS property */
.exampleone {
  background: url("https://mdn.mozillademos.org/files/11987/startransparent.gif") #FFEE99 2.5cm bottom no-repeat;
}
.exampletwo {
  background: url("https://mdn.mozillademos.org/files/11987/startransparent.gif") #FFEE99 3em 50% no-repeat;
}

/*
Multiple background images: Each image is matched with the
corresponding position style, from first specified to last.
*/
.examplethree {
  background-image:    url("https://mdn.mozillademos.org/files/11987/startransparent.gif"), 
                       url("https://mdn.mozillademos.org/files/7693/catfront.png");
  background-position: 0px 0px,
                       center;
}

Output

Specifications

Specification Status Comment
CSS Backgrounds and Borders Module Level 3
The definition of 'background-position' in that specification.
Candidate Recommendation Added support for multiple backgrounds and the four-value syntax. Modified the percentage definition to match implementations.
CSS Level 2 (Revision 1)
The definition of 'background-position' in that specification.
Recommendation Allows for the mix of keyword values and <length> and <percentage> values.
CSS Level 1
The definition of 'background-position' in that specification.
Recommendation Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 1.0 1.0 (1.7 or earlier) 4.0 3.5 1.0 (85)
Multiple backgrounds 1.0 3.6 (1.9.2) 9.0 10.5 1.3 (312)
Four-value syntax (support for offsets from any edge) 25 (maybe earlier) 13.0 (13.0) 9.0 10.5 7.0
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) 1.0 (1) (Yes) (Yes) (Yes)
Multiple backgrounds ? 1.0 (1.9.2) ? ? ?
Four-value syntax (support for offsets from any edge) No support 13.0 (13.0) ? ? iOS 7.0

See also