border-inline-start-style

Determines the line style (solid, dashed, etc.) for the 'start' side border. Replaces 'border-left-style' for better international formatting.

It is documented as part of the CSS Logical Properties and Values specification.

/* Usage Example */
pre {
  border-inline-start-style: solid;
  border-inline-start-width: 4px;
  border-inline-start-color: #cbd5e1;
  padding-inline-start: 1rem;
}

/* Syntax */
border-inline-start-style: border-top-style;

/* Global values */
border-inline-start-style: inherit;
border-inline-start-style: initial;
border-inline-start-style: revert;
border-inline-start-style: revert-layer;
border-inline-start-style: unset;
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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