border-top-style | CSS CSS Properties

Sets the line style for the physical top border. You must set a style other than 'none' for the border to be rendered.

Quick example

.tab {
  /* Physical top border style */
  border-top-style: solid;
  border-top-width: 2px;
  border-top-color: currentColor;
}

Initial value

none

Inherited

Applies to

all elements

Animation type

discrete

Widely available Since 2015 96% global usage

This feature is well established and works across many devices and browser versions. It has been available across browsers since 2015.

Safe to use without fallbacks.

12+