CSS outline-width Property

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Example

Set the width of an outline:

div {outline-width: thick;}

Try it Yourself »

More "Try it Yourself" examples below.

Definition and Usage

An outline is a line that is drawn around elements, outside the borders, to make the element "stand out".

The outline-width specifies the width of an outline.

Note: Always declare the outline-style property before the outline-width property. An element must have an outline before you change the width of it.

Show demo ❯

Default value:	medium
Inherited:	no
Animatable:	yes, see individual properties. Read about animatable Try it
Version:	CSS2
JavaScript syntax:	object.style.outlineWidth="12px" Try it

Tips and Notes

Note: Outlines differ from borders! Unlike border, the outline is drawn outside the element's border, and may overlap other content. Also, the outline is NOT a part of the element's dimensions; the element's total width and height is not affected by the width of the outline.

Browser Support

The numbers in the table specify the first browser version that fully supports the property.

Property
outline-width	1.0	8.0	1.5	1.2	7.0

CSS Syntax

Property Values

Value	Description	Demo
medium	Specifies a medium outline. This is default	Demo ❯
thin	Specifies a thin outline	Demo ❯
thick	Specifies a thick outline	Demo ❯
length	Allows you to define the thickness of the outline. Read about length units	Demo ❯
initial	Sets this property to its default value. Read about initial
inherit	Inherits this property from its parent element. Read about inherit