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.
| 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
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.
CSS Syntax
outline-width: medium|thin|thick|length|initial|inherit;
Property Values
| Value | Description |
|---|---|
| medium | Specifies a medium outline. This is default |
| thin | Specifies a thin outline |
| thick | Specifies a thick outline |
| length | Allows you to define the thickness of the outline. |
| initial | Sets this property to its default value. Read about initial |
| inherit | Inherits this property from its parent element. Read about inherit |
