The background-position-y
CSS property sets the initial vertical position, relative to the background position layer defined by background-origin
for each defined background image. For more information, see the background-position
property, which has been widely supported for much longer.
background
or background-position
shorthand properties applied to the element after the background-position-x
CSS property./* 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: unset;
Initial value | top |
---|---|
Applies to | all elements |
Inherited | no |
Percentages | refer to height of background positioning area minus height of background image |
Media | visual |
Computed value | A list, each item consisting of: an offset given as a combination of an absolute length and a percentage, plus an origin keyword |
Animation type | discrete |
Canonical order | the unique non-ambiguous order defined by the formal grammar |
top
center
bottom
<length>
<length>
value defining the offset of the given background image's vertical edge from the corresponding background position layer's vertical edge. If no edge is given, it refers to the top edge.<percentage>
<percentage>
value defining the offset of the given background image's vertical edge from the corresponding background position layer's vertical edge relative to its height. If no edge is given, it refers to the top edge.[ center | [ top | bottom | y-start | y-end ]? <length-percentage>? ]#where
<length-percentage> = <length> | <percentage>
Specification | Status | Comment |
---|---|---|
CSS Backgrounds and Borders Module Level 4 The definition of 'background-position-y' in that specification. | Editor's Draft | Initial specification of longhand subproperties of background-position , to match longstanding implementations. |
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | Yes | 12 | 49 | 6 | Yes | Yes |
Two-value syntax (support for offsets from any edge) | No | 12 | 49 | 9 | No | No |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | Yes | Yes | Yes | 49 | ? | ? | ? |
Two-value syntax (support for offsets from any edge) | No | No | Yes | 49 | ? | No | No |
background-position
background-position-x
background-position-inline
background-position-block
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/background-position-y