CSSoutline-width Property
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".
Theoutline-width specifies the width of an outline.
Note: Always declare theoutline-style property before theoutline-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 aboutanimatableTry it |
| Version: | CSS2 |
| JavaScript syntax: | object.style.outlineWidth="12px"Try it |
Tips and Notes
Note: Outlines differ fromborders! 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 aboutinitial | |
| inherit | Inherits this property from its parent element.Read aboutinherit |
More Examples
Example
Set the width of the outline to medium (this is default):
Related Pages
CSS tutorial:CSS Outline
CSS reference:outline property
HTML DOM reference:outlineWidth property
