border-inline-style

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨April 2021⁩.

The border-inline-style CSS property defines the style of the logical inline borders of an element, which maps to a physical border style depending on the element's writing mode, directionality, and text orientation. It corresponds to the border-top-style and border-bottom-style, or border-left-style and border-right-style properties depending on the values defined for writing-mode, direction, and text-orientation.

Try it

border-inline-style: dotted; writing-mode: horizontal-tb;

border-inline-style: dotted; writing-mode: vertical-rl;

border-inline-style: groove; writing-mode: horizontal-tb; direction: rtl;

<section class="default-example" id="default-example"> <div class="transition-all" id="example-element"> This is a box with a border around it. </div> </section>

#example-element { background-color: #eeeeee; color: black; border: 0.75em solid; padding: 0.75em; width: 80%; height: 100px; unicode-bidi: bidi-override; }

The border style in the other dimension can be set with border-block-style, which sets border-block-start-style, and border-block-end-style.

Syntax

css

/* <'border-style'> values */ border-inline-style: dashed; border-inline-style: dotted; border-inline-style: groove; /* Global values */ border-inline-style: inherit; border-inline-style: initial; border-inline-style: revert; border-inline-style: revert-layer; border-inline-style: unset;

Values

<'border-style'>: The line style of the border. See border-style.

Formal definition

Initial value	`none`
Applies to	all elements
Inherited	no
Computed value	as specified
Animation type	discrete

Formal syntax

border-inline-style = 
 <'border-top-style'>{1,2} 

<border-top-style> = 
 <line-style> 

<line-style> = 
 none |
 hidden |
 dotted |
 dashed |
 solid |
 double |
 groove |
 ridge |
 inset |
 outset

Examples

Setting border-inline-style

HTML

html

<div> <p class="exampleText">Example text</p> </div>

CSS

css

div { background-color: yellow; width: 120px; height: 120px; } .exampleText { writing-mode: vertical-lr; border: 5px solid blue; border-inline-style: dashed; }

Specifications

Specification
CSS Logical Properties and Values Level 1 # propdef-border-inline-style

Browser compatibility

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This page was last modified on ⁨Oct 30, 2025⁩ by MDN contributors.

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