background-position-y
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The background-position-y CSS property sets the initial vertical position for each background image. The position is relative to the position layer set by background-origen.
Try it
The value of this property is overridden by any declaration of the background or background-position shorthand properties applied to the element after it.
Syntax
/* Keyword values */
background-position-y: top;
background-position-y: center;
background-position-y: bottom;
/* <percentage> values */
background-position-y: 25%;
/* <length> values */
background-position-y: 0px;
background-position-y: 1cm;
background-position-y: 8em;
/* Side-relative values */
background-position-y: bottom 3px;
background-position-y: bottom 10%;
/* Multiple values */
background-position-y: 0px, center;
/* Global values */
background-position-y: inherit;
background-position-y: initial;
background-position-y: revert;
background-position-y: revert-layer;
background-position-y: unset;
The background-position-y property is specified as one or more values, separated by commas.
Values
top-
Aligns the top edge of the background image with the top edge of the background position layer.
center-
Aligns the vertical center of the background image with the vertical center of the background position layer.
bottom-
Aligns the bottom edge of the background image with the bottom edge of the background position layer.
<length>-
The offset of the given background image's horizontal edge from the corresponding background position layer's top horizontal edge. (Some browsers allow assigning the bottom edge for offset).
<percentage>-
The offset of the given background image's vertical position relative to the container. A value of 0% means that the top edge of the background image is aligned with the top edge of the container, and a value of 100% means that the bottom edge of the background image is aligned with the bottom edge of the container, thus a value of 50% vertically centers the background image.
Formal definition
| Initial value | 0% |
|---|---|
| Applies to | all elements. It also applies to ::first-letter and ::first-line. |
| Inherited | no |
| Percentages | refer to height of background positioning area minus height of background image |
| Computed value | A list, each item consisting of: an offset given as a combination of an absolute length and a percentage, plus an origen keyword |
| Animation type | a repeatable list |
Formal syntax
Examples
Basic example
The following example shows a simple background image implementation, with background-position-x and background-position-y used to define the image's horizontal and vertical positions separately.
HTML
<div></div>
CSS
div {
width: 300px;
height: 300px;
background-color: skyblue;
background-image: url(https://images.weserv.nl/?url=https%3A%2F%2Fmdn.dev%2Farchives%2Fmedia%2Fattachments%2F2020%2F07%2F29%2F17350%2F3b4892b7e820122ac6dd7678891d4507%2Ffirefox.png&q=12&output=webp&max-age=110);
background-repeat: no-repeat;
background-position-x: center;
background-position-y: bottom;
}
Result
Side-relative values
The following example shows support for side-relative offset syntax, which allows the developer to offset the background from any edge.
HTML
<div></div>
CSS
div {
width: 300px;
height: 300px;
background-color: seagreen;
background-image: url(https://images.weserv.nl/?url=https%3A%2F%2Fmdn.dev%2Farchives%2Fmedia%2Fattachments%2F2020%2F07%2F29%2F17350%2F3b4892b7e820122ac6dd7678891d4507%2Ffirefox.png&q=12&output=webp&max-age=110);
background-repeat: no-repeat;
background-position-x: right 20px;
background-position-y: bottom 10px;
}
Result
Specifications
| Specification |
|---|
| CSS Backgrounds and Borders Module Level 4 # background-position-longhands |
Browser compatibility
BCD tables only load in the browser