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Definition and usage

The border-top-style sets the style of the top border of the element.

The border may only appear if this value is not none.

In CSS1, the HTML user agent only needs to support solid and none.

See also:

CSS Tutorial:CSS border

CSS Reference Manual:border-top attribute

HTML DOM Reference Manual:borderTopStyle attribute

Example

Set the style of the top border:

p
  {
  border-style:solid;
  border-top-style:dotted;
  }

Try it yourself

CSS syntax

border-top-style: none|hidden|dotted|dashed|solid|double|groove|ridge|inset|outset|initial|inherit;

Attribute value

Value Description
none Defines a border without borders.
hidden It is the same as "none", except when applied to tables. For tables, "hidden" is used to resolve border conflicts.
dotted Defines a dotted border. It is displayed as a solid line in most browsers.
dashed Defines a dashed line. It is displayed as a solid line in most browsers.
solid Defines a solid line.
double Defines double lines. The width of the double lines is equal to the value of border-width.
groove Defines a 3D groove border. Its effect depends on the value of border-color.
ridge Defines a 3D bevel border. Its effect depends on the value of border-color.
inset Defines a 3D inset border. Its effect depends on the value of border-color.
outset Defines a 3D outset border. Its effect depends on the value of border-color.
inherit Specifies that the border style should be inherited from the parent element.

Technical details

Default value: not specified
Inheritance: no
Version: CSS1
JavaScript syntax: object.style.borderTopStyle="dotted"

More examples

Set the style of the top border
This example demonstrates how to set the style of the top border.

Browser support

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

Chrome IE / Edge Firefox Safari Opera
1.0 5.5 1.0 1.0 9.2