The HTML DOM borderWidth property is used as a shorthand for getting or setting the border width properties for an element. It takes from one to 4 values in the following ways −
It assigns border-width in the clockwise direction if all 4 values are given.
If only one value is given then the same width is applied to all 4 borders.
If two values are given then top and bottom are set to first value and left and right are set to second value.
Following is the syntax for −
Setting the borderWidth property:
object.style.borderWidth = "thin|medium|thick|length|initial|inherit"
The property values are explained as follows −
Value | Description |
---|---|
thin | For specifying the left border color. The default color is set to black |
medium | This specifies the medium border and is the default value. |
thick | This specifies a thin border. |
length | This is used for specifying the border width in length units. |
initial | For setting this property to initial value. |
inherit | To inherit the parent property value |
Let us look at an example for the borderWidth Property −
Example
<!DOCTYPE html> <html> <head> <style> #DIV1{ height: 100px; width: 200px; border: 10px groove orange; padding: 10px; border-width:30px; } </style> <script> function changeBorderWidth(){ document.getElementById("DIV1").style.borderWidth="5px"; document.getElementById("Sample").innerHTML="The border width is now decreased"; } </script> </head> <body> <div id="DIV1">SOME SAMPLE TEXT</div> <p>Change the above div border width by clicking the below button</p> <button onclick="changeBorderWidth()">Change Border Width</button> <p id="Sample"></p> </body> </html>
Output
On clicking the “Change Border Width” button −