border-block-color
Sets the color of the borders in the block dimension (top and bottom in horizontal text). It's a logical way to style both 'vertical' ends of a box at once.
It is documented as part of the CSS Logical Properties and Values specification.
Syntax
/* Usage Example */
.sidebar-item {
/* Sets both top and bottom borders to purple */
border-block-color: #7c3aed;
border-block-style: solid;
border-block-width: 2px;
}
/* Syntax */
border-block-color: border-top-color;
/* Global values */
border-block-color: inherit;
border-block-color: initial;
border-block-color: revert;
border-block-color: revert-layer;
border-block-color: unset;border-block-color Browser support
Widely available
Since
2021 95% global usage
This feature is well established and works across many devices and browser versions. It has been available across browsers since 2021.
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