border-block-start-color
Sets the color of the 'start' side of the block dimension (usually the top border). Part of the logical properties set for more flexible layout systems.
It is documented as part of the CSS Logical Properties and Values specification.
Syntax
/* Usage Example */
.sticky-header {
border-block-start-color: #f8fafc;
border-block-start-style: solid;
border-block-start-width: 1px;
}
/* Syntax */
border-block-start-color: border-top-color;
/* Global values */
border-block-start-color: inherit;
border-block-start-color: initial;
border-block-start-color: revert;
border-block-start-color: revert-layer;
border-block-start-color: unset;border-block-start-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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