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CSS outline-offset Property

The outline-offset property sets the amount of space between an outline and the edge or border of an element.

The space between an element and its outline is transparent.

CSS Demo: outline-offset

outline-offset: 4px;
outline-offset: 20px;
outline-offset: 3em;
outline-offset: -18px;
outline-offset: 5em;
This is a box with a red border and an outline around it

Outlines are very similar to borders, but there are few major differences as well:

  • An outline does not take up space
  • Outlines do not have to be rectangular
  • Outline is always the same on all sides; you cannot specify different values for different sides of an element

Technical Details

Default value 0
Applies to all elements
Inherited no
Computed value as specified
Animatable yes See animatable properties. Demo
Version CSS2
JavaScript syntax object.style.outlineOffset = "25px" Demo


CSS Syntax:

outline-offset: length|initial|inherit;

Examples

The following example shows how to use outline-offset property:

Run code

Browser compatibility

The numbers in the table specify the first browser version that fully supports the outline-offset property:

Property
outline-offset 1 1.5 7 1.2 8

Property Values

The following table describes the values of outline-offset property:

Value Description
length The width of the space between the element and its outline. A negative value places the outline inside the element. See length units
initial Sets this property to its default value
inherit Inherits this property from its parent element

See also

CSS Outline tutorial

CSS outline property

CSS outline-color property

CSS outline-style property

CSS outline-width property