`border-inline` CSS property

The border-inline CSS property is a shorthand property for setting the individual logical inline border property values in a single place in the style sheet.

Try it

border-inline: solid;
writing-mode: horizontal-tb;

border-inline: dashed red;
writing-mode: vertical-rl;

border-inline: 1rem solid;
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: darkmagenta;
  padding: 0.75em;
  width: 80%;
  height: 100px;
  unicode-bidi: bidi-override;
}

Constituent properties

This property is a shorthand for the following CSS properties:

Syntax

css

border-inline: 1px;
border-inline: 2px dotted;
border-inline: medium dashed blue;

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

Values

The border-inline is specified with one or more of the following, in any order:

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

Description

The physical borders to which border-inline maps depends on the element's writing mode, directionality, and text orientation. It corresponds to the border-top and border-bottom or border-right, and border-left properties, depending on the values defined for writing-mode, direction, and text-orientation.

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

Formal definition

Initial value	as each of the properties of the shorthand: `border-inline-width`: as each of the properties of the shorthand: `border-inline-start-width`: `medium` `border-inline-end-width`: `medium` `border-inline-style`: as each of the properties of the shorthand: `border-inline-start-style`: `none` `border-inline-end-style`: `none` `border-inline-color`: as each of the properties of the shorthand: `border-inline-start-color`: `currentcolor` `border-inline-end-color`: `currentcolor`
Applies to	all elements
Inherited	no
Computed value	as each of the properties of the shorthand: `border-inline-width`: as each of the properties of the shorthand: `border-inline-start-width`: the absolute `<length>`, snapped as a line width `border-inline-end-width`: the absolute `<length>`, snapped as a line width `border-inline-style`: as each of the properties of the shorthand: `border-inline-start-style`: as specified `border-inline-end-style`: as specified `border-inline-color`: as each of the properties of the shorthand: `border-inline-start-color`: computed color `border-inline-end-color`: computed color
Animation type	as each of the properties of the shorthand: `border-inline-width`: as each of the properties of the shorthand: `border-inline-start-width`: by computed value type `border-inline-end-width`: by computed value type `border-inline-style`: discrete `border-inline-color`: as each of the properties of the shorthand: `border-inline-start-color`: by computed value type `border-inline-end-color`: by computed value type

Formal syntax

border-inline = 
  <'border-block-start'>  

<border-block-start> = 
  <line-width>  ||
  <line-style>  ||
  <color>       

<line-width> = 
  <length [0,∞]>  |
  hairline        |
  thin            |
  medium          |
  thick           

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

Examples

undefined

Border with vertical text

HTML

html

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

CSS

css

div {
  background-color: yellow;
  width: 120px;
  height: 120px;
}

.exampleText {
  writing-mode: vertical-rl;
  border-inline: 5px dashed blue;
}

Results

Specifications

CSS Logical Properties and Values Module Level 1

border-inline CSS property