Style borderBottomWidth Property

Definition and Usage

borderBottomWidth Sets or returns the width of the element's bottom border.

See Also:

CSS Tutorial:CSS Border

CSS Reference Manual:border-bottom-width Attribute

HTML DOM Reference Manual:border Property

Example

Example 1

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

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

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Example 2

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

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

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Example 3

Returns the width of the bottom border of the <div> element:

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

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Syntax

Return borderBottomWidth Property:

object.style.borderBottomWidth

Set borderBottomWidth Property:

object.style.borderBottomWidth = "thin|medium|thick|length|initial|inherit"

Attribute Value

Value Description
thin Defines thin borders.
medium Defines medium borders. Default.
thick Defines thick borders.
length Border width measured in length.
initial Sets this property to its default value. See initial.
inherit Inherits this property from its parent element. See inherit.

Technical Details

Default Value: medium
Return Value: A string representing the width of the element's bottom border.
CSS Version: CSS1

Browser Support

The numbers in the table indicate the browser version that first fully supports this attribute.

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
1.0 4.0 1.0 1.0 3.5