Style borderWidth Property
Example
Change the width of the four borders of a <div> element:
document.getElementById("myDiv").style.borderWidth = "thick";Try it Yourself »
Definition and Usage
The borderWidth property sets or returns the width of an element's border.
This property can take from one to four values:
- One value, like: p {border-width: thick} - all four borders will be thick
- Two values, like: p {border-width: thick thin} - the top and bottom border will be thick, left and right border will be thin
- Three values, like: p {border-width: thick thin medium}- the top border will be thick, left and right border will be thin, bottom border will be medium
- Four values, like: p {border-width: thick thin medium 10px} - the top border will be thick, right border will be thin, bottom border will be medium, left border will be 10px
Browser Support
| Property | |||||
|---|---|---|---|---|---|
| borderWidth | Yes | Yes | Yes | Yes | Yes |
Syntax
Return the borderWidth property:
object.style.borderWidth
Set the borderWidth property:
object.style.borderWidth = "thin|medium|thick|length|initial|inherit"
Property Values
| Value | Description |
|---|---|
| thin | Defines a thin border |
| medium | Defines a medium border. This is default |
| thick | Defines a thick border |
| length | The width of the border 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 border |
| CSS Version | CSS1 |
More Examples
Example
Change the width of the top and bottom border to thick, and the left and right border to thin of a <div> element:
document.getElementById("myDiv").style.borderWidth = "thick thin";
Try it Yourself »
Example
Change the width of the four borders of a <div> element, using the length value:
document.getElementById("myDiv").style.borderWidth = "1px 5px 10px 20px";
Try it Yourself »
Example
Return the width of the border of a <div> element:
alert(document.getElementById("myDiv").style.borderWidth);
Try it Yourself »
Related Pages
CSS tutorial: CSS Border
CSS reference: border-width property
HTML DOM reference: border property
❮ Style Object
