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Style borderBottomWidth Property

Style Object Reference Style Object

Example

Change the width of the bottom border of a <div> element to 10px:

document.getElementById("myDiv").style.borderBottomWidth = "10px";

Try it yourself »

More "Try it Yourself" examples below.


Definition and Usage

The borderBottomWidth property sets or returns the width of the bottom border of an element.


Browser Support

The numbers in the table specify the first browser version that fully supports the property.

Property
borderBottomWidth 1.0 4.0 1.0 1.0 3.5

Syntax

Return the borderBottomWidth property:

object.style.borderBottomWidth

Set the borderBottomWidth property:

object.style.borderBottomWidth="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 bottom border
CSS Version CSS1

More Examples

Example

Change the width of the bottom border of a <div> element to thin:

document.getElementById("myDiv").style.borderBottomWidth = "thin";

Try it yourself »

Example

Return the width of the bottom border of a <div> element:

alert(document.getElementById("myDiv").style.borderBottomWidth);

Try it yourself »

Related Pages

CSS tutorial: CSS Border

CSS reference: border-bottom-width property

HTML DOM reference: border property


Style Object Reference Style Object

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