Example
Change the width of the outline of a <div> element:
document.getElementById("myDiv").style.outlineWidth = "10px";Try it Yourself »
Definition and Usage
The outlineWidth property sets or returns the width of the outline around an element.
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 outlineWidth property is supported in all major browsers.
Note: The outlineWidth property is not supported in IE7 and earlier. IE8 requires a !DOCTYPE. IE9 and later support it.
Syntax
Return the outlineWidth property:
object.style.outlineWidth
Set the outlineWidth property:
object.style.outlineWidth="thin|medium|thick|length|initial|inherit"
Property Values
| Value | Description |
|---|---|
| thin | Defines a thin outline |
| medium | Defines a medium outline. This is default |
| thick | Defines a thick outline |
| length | The width of the outline in length units |
| initial | Sets this property to its default value. Read about initial |
| inherit | Inherits this property from its parent element. Read about inherit |
Technical Details
| Default Value: | medium |
|---|---|
| Return Value: | A String, representing the width of an element's outline |
| CSS Version | CSS2 |
More Examples
Example
Change the width of the outline of a <div> element, using the "thick" value:
document.getElementById("myDiv").style.outlineWidth = "thick";
Try it Yourself »
Example
Return the width of the outline of a <div> element:
alert(document.getElementById("myDiv").style.outlineWidth);
Try it Yourself »
Related Pages
CSS tutorial: CSS Outline
CSS reference: outline property
HTML DOM reference: outline property
< Style Object