CSS border-top-width definition

Browser support
IE	FF	Op	Saf

Type:

Syntax

border-top-width: medium | thin | thick | <length>

The border-top-width property specifies the width of the top border.

Values	Definition
thin	Sets a thin border.
medium	Default. Sets a thin border.
thick	Sets a thick border.
length<unit>	For example: 5px. The unit can be any of px (pixels), mm (millimeters), cm(centimeters), in (inches), pt (points), pc (picas), em (the element's font height) or ex (the element's x-height).