The outline-offset
CSS property sets the amount of space between an outline and the edge or border of an element.
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An outline is a line that is drawn around an element, outside the border edge. The space between an element and its outline is transparent. In other words, it is the same as the parent element's background.
Syntax
/* <length> values */ outline-offset: 3px; outline-offset: 0.2em; /* Global values */ outline-offset: inherit; outline-offset: initial; outline-offset: unset;
Values
<length>
- The width of the space between the element and its outline. A negative value places the outline inside the element. A value of
0
places the outline so that there is no space between it and the element.
Formal syntax
<length>
Example
p { outline: 1px dashed red; outline-offset: 10px; background: yellow; border: 1px solid blue; margin: 15px; }
<p>Gallia est omnis divisa in partes tres.</p>
Specifications
Specification | Status | Comment |
---|---|---|
CSS Transitions The definition of 'outline-offset' in that specification. |
Working Draft | Defines outline-offset as animatable. |
CSS Basic User Interface Module Level 3 The definition of 'outline-offset' in that specification. |
Recommendation | Initial definition |
Initial value | 0 |
---|---|
Applies to | all elements |
Inherited | no |
Media | as each of the properties of the shorthand:
|
Computed value | as specified, but with relative lengths converted into absolute lengths |
Animation type | a length |
Canonical order | the unique non-ambiguous order defined by the formal grammar |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
outline-offset | Chrome Full support 1 | Edge Full support 15 | Firefox Full support 1.5 | IE No support No | Opera Full support 9.5 | Safari Full support 1.2 | WebView Android Full support 37 | Chrome Android Full support 18 | Firefox Android Full support 4 | Opera Android ? | Safari iOS Full support 1 | Samsung Internet Android ? |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown