CSS border-inline-start-width

The border-inline-start-width property sets the width of the border at the start side of the inline axis. In left-to-right horizontal text, that usually maps to the left border.

Syntax

border-inline-start-width: thin;
border-inline-start-width: medium;
border-inline-start-width: thick;
border-inline-start-width: 0.25rem;

Example

blockquote {
  border-inline-start-style: solid;
  border-inline-start-color: #14b8a6;
  border-inline-start-width: 0.35rem;
  padding-inline-start: 1rem;
}
Result:
Logical borders follow the writing direction.

Common mistake

The width is visible only when the related border style is not none. Set a style such as solid before expecting the width to appear.

Related CSS topics