CSS outline-width Property


Set the width of an outline:

p {
    outline-style: dotted;
    outline-width: 5px;

Try it yourself »

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.

Default value: medium
Inherited: no
Animatable: yes, see individual properties. Read about animatable Try it
Version: CSS2
JavaScript syntax: object.style.outlineWidth="2px" Try it

Tips and Notes

An outline is a line around an element. It is displayed around the margin of the element. However, it is different from the border property.

The outline is not a part of the element's dimensions, therefore the element's width and height properties do not contain the width of the outline.

Browser Support

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

outline-width 1.0 8.0 1.5 1.2 7.0

Note: IE8 supports the outline-width property only if a !DOCTYPE is specified.

CSS Syntax

outline-width: medium|thin|thick|length|initial|inherit;

Property Values

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

Related Pages

CSS tutorial: CSS Outline

CSS reference: outline property

HTML DOM reference: outlineWidth property




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