CSS border-width Property
Complete CSS Reference
Example
Set the width of the four borders:
p
{
border-style:solid;
border-width:15px;
} |
Try it yourself »
|
Definition and Usage
The border-width property sets the width of an element's four borders. This property can
have from one to four values.
Examples:
- border-width:thin medium thick 10px;
- top border is thin
- right border is medium
- bottom border is thick
- left border is 10px
- border-width:thin medium thick;
- top border is thin
- right and left borders are medium
- bottom border is thick
- border-width:thin medium;
- top and bottom borders are thin
- right and left borders are medium
- border-width:thin;
- all four borders are thin
Note: Always declare the border-style property before the border-width
property. An element must have borders before you can change the color.
| Default value: |
medium |
| Inherited: |
no |
| Version: |
CSS1 |
| JavaScript syntax: |
object.style.borderWidth="thin thick" |
Browser Support

The border-width property is supported in all major browsers.
Note: No versions of Internet Explorer (including IE8) support the property value "inherit".
Property Values
| Value |
Description |
| thin |
Specifies a thin border |
| medium |
Specifies a medium border. This is default |
| thick |
Specifies a thick border |
| length |
Allows you to define the thickness of the border |
| inherit |
Specifies that the border width should be inherited
from the parent element |
Related Pages
CSS tutorial: CSS Border
HTML DOM reference:
borderWidth property
Complete CSS Reference
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