border-block-width
Sets the thickness of the borders in the block dimension (usually top and bottom). It's a convenient way to adjust the vertical thickness of a box's borders simultaneously.
It is documented as part of the CSS Logical Properties and Values specification.
Syntax
/* Usage Example */
.divider {
border-block-style: solid;
/* sets 2px thickness for both top and bottom edges */
border-block-width: 2px;
border-block-color: #333;
}
/* Syntax */
border-block-width: border-top-width;
/* Global values */
border-block-width: inherit;
border-block-width: initial;
border-block-width: revert;
border-block-width: revert-layer;
border-block-width: unset;border-block-width 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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