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CSS border-top-width Property

Example

Set the width of the top border:


Property Definition and Usage

The border-top-width property sets the width of an element's top border.

Note: Always declare the border-style property before the border-top-width property. An element must have borders before you can change the width of them.

Default value: medium
Inherited: no
--- ---
Version: CSS1
--- ---
JavaScript syntax: object.style.borderTopWidth="thick"
--- ---

Browser Support

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

Property
border-top-width 1.0 4.0 1.0 1.0 3.5

Property Values

Value Description
thin Defines a thin top border.
medium Default value. Defines a medium top border.
thick Defines a thick top border.
length Allows you to define the width of the top border.
inherit Specifies that the border width should be inherited from the parent element.

Related Articles

CSS Tutorial: CSS Border

CSS Reference: border-top Property

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