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Summary
The background-origin CSS property determines the background positioning area, that is the position of the origin of an image specified using the background-image CSS property.
Note that background-origin is ignored when background-attachment is fixed.
background shorthand property that is applied to the element after the background-origin CSS property, the value of this property is then reset to its initial value by the shorthand property.| Initial value | padding-box |
|---|---|
| Applies to | all elements. It also applies to ::first-letter and ::first-line. |
| Inherited | no |
| Media | visual |
| Computed value | as specified |
| Animation type | discrete |
| Canonical order | the unique non-ambiguous order defined by the formal grammar |
Syntax
background-origin: border-box; background-origin: padding-box; background-origin: content-box; background-origin: inherit;
Values
border-box- The background extends to the outside edge of the border (but underneath the border in z-ordering).
padding-box- No background is drawn below the border (background extends to the outside edge of the padding).
content-box- The background is painted within (clipped to) the content box.
Formal syntax
<box>#
Examples
.example {
border: 10px double;
padding: 10px;
background: url('image.jpg');
background-position: center left;
/* The background will be inside the padding */
background-origin: content-box;
}
#example2 {
border: 4px solid black;
padding: 10px;
background: url('image.gif');
background-repeat: no-repeat;
background-origin: border-box;
}
div {
background-image: url('logo.jpg'), url('mainback.png'); /* This will apply both images as background */
background-position: top right, 0px 0px;
background-origin: content-box, padding-box;
}
Specifications
| Specification | Status | Comment |
|---|---|---|
| CSS Backgrounds and Borders Module Level 3 The definition of 'background-origin' in that specification. |
Candidate Recommendation | Initial definition |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 1.0 [3] | 4.0 (2.0)[1] | 9.0[2] | 10.5 | 3.0 (522)[3] |
content-box |
1.0 [3] | 4.0 (2.0)[1] | 9.0[2] | No support | 3.0 (522)[3] |
| Feature | Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | ? | ? | ? | ? | ? |
content-box |
? | ? | ? | ? | ? |
[1] Gecko supported from version 1.1 to version 1.9.2 (Firefox 3.6 / Thunderbird 3.1 / Fennec 1.0) a different, and prefixed, syntax: -moz-background-origin: padding | border.
In addition to the unprefixed support, Gecko 44.0 (Firefox 44.0 / Thunderbird 44.0 / SeaMonkey 2.41) added support for a -webkit prefixed version of the property for web compatibility reasons behind the preference layout.css.prefixes.webkit, defaulting to false. Since Gecko 49.0 (Firefox 49.0 / Thunderbird 49.0 / SeaMonkey 2.46) the preference defaults to true.
[2] Internet Explorer up to version 7 behaves as if there was a background-origin: border-box; Internet Explorer 8 behaves as if it were background-origin: padding-box; which is the regular default value.
[3] Webkit also supports the prefixed version of this proprietary, and in that case, in addition to the current keywords, the alternative synonyms: padding, border, and content.