`border-block-end` CSS property

Baseline Widely available

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

The border-block-end CSS shorthand property sets the individual logical block-end border property values in a single place in the style sheet.

Try it

border-block-end: solid;
writing-mode: horizontal-tb;

border-block-end: dashed red;
writing-mode: vertical-rl;

border-block-end: 1rem solid;
writing-mode: horizontal-tb;

border-block-end: thick double #32a1ce;
writing-mode: vertical-lr;

<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

border-block-end: 1px;
border-block-end: 2px dotted;
border-block-end: medium dashed blue;

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

border-block-end can be used to set the values for one or more of border-block-end-width, border-block-end-style, and border-block-end-color. The physical border to which it maps depends on the element's writing mode, directionality, and text orientation. It corresponds to the border-top, border-right, border-bottom, or border-left property depending on the values defined for writing-mode, direction, and text-orientation.

Related properties are border-block-start, border-inline-start, and border-inline-end, which define the other borders of the element.

Values

The border-block-end 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.

Formal definition

Initial value	as each of the properties of the shorthand: `border-block-end-width` `border-block-end-style` `border-block-end-color`
Applies to	all elements
Inherited	no
Computed value	as each of the properties of the shorthand: `border-block-end-width` `border-block-end-style` `border-block-end-color`
Animation type	as each of the properties of the shorthand: `border-block-end-width` `border-block-end-style` `border-block-end-color`

Formal syntax

border-block-end = 
  <'border-top'>

Examples

Border with vertical text

HTML

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

CSS

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

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

Results

Specifications

Specification
CSS Logical Properties and Values Module Level 1 # border-shorthands

Browser compatibility

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`border-block-end`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`currentColor`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`dashed`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`dotted`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`double`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`groove`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`hidden`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`inset`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`medium`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`none`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`outset`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`ridge`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`solid`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`thick`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`thin`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2
`transparent`	69	79	41	56	12.1	69	41	48	12.2	10.0	69	12.2