Specifies the width of the border.
Platform Support
IE | Netscape | Mozilla | Opera | Safari | 4.0+ | 4.0+ | 1.0+ | 5.0+ | 1.0+ |
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Usage
[border-top-width] [border-right-width] [border-bottom-width] [border-left-width]. Example values: 2px 4px 2px 4px, 0.25in 05.in, thin, etc.
Values
* | Specify a border width value not on this list. |
inherit | Inherit the value from the parent element. |
thin | Thin border. |
medium | Medium border. |
thick | Thick border. |
Example
To specify a border width that is 2px on top, 1px on the right and bottom, and 2px on the left, use the following syntax: .myborderclass {border-width: 2px 1px 1px 2px;}
.
Remarks
You can also specify a fixed pixel value for border-width
.
You can specify up to four different widths for the border of an element.
- For border that is the same on all four sides, specify a single value.
- For border that is different on the top/bottom and left/right sides, specify two values with the top/bottom value first.
- For border that is different on the top, left/right, and bottom sides, specify three values with the top value first, followed by the left/right and then bottom values.
- For border with four different styles, specify four values in the order of top, right, bottom, and left.
Availability
W3C CSS2