border-top-style
Sets the line style for the physical top border. You must set a style other than 'none' for the border to be rendered.
It is documented as part of the CSS Backgrounds and Borders specification.
Syntax
/* Usage Example */
.tab {
/* Physical top border style */
border-top-style: solid;
border-top-width: 2px;
border-top-color: currentColor;
}
/* Global values */
border-top-style: inherit;
border-top-style: initial;
border-top-style: revert;
border-top-style: revert-layer;
border-top-style: unset;border-top-style Browser support
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.
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