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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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.
Description
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.
Formal definition
Initial value | 0 |
---|---|
Applies to | all elements |
Inherited | no |
Computed value | as specified, but with relative lengths converted into absolute lengths |
Animation type | a length |
Formal syntax
<length>
Examples
Setting outline offset in pixels
HTML
<p>Gallia est omnis divisa in partes tres.</p>
CSS
p { outline: 1px dashed red; outline-offset: 10px; background: yellow; border: 1px solid blue; margin: 15px; }
Result
Specifications
Specification | Status | Comment |
---|---|---|
CSS Basic User Interface Module Level 3 The definition of 'outline-offset' in that specification. |
Recommendation | Initial definition |
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.
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 Full support 14 | Safari iOS Full support 1 | Samsung Internet Android Full support 1.0 |
Legend
- Full support
- Full support
- No support
- No support