W3cubDocs

/CSS

border-block-color

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

border-block-color: yellow;
border-block-color: #F5F6F7;

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

Syntax

Values

<'color'>
The color of the border. See color.

Formal definition

Initial value currentcolor
Applies to all elements
Inherited no
Computed value computed color
Animation type discrete

Formal syntax

<'border-top-color'>{1,2}

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-lr;
  border: 10px solid blue;
  border-block-color: red;
}

Results

Specifications

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
border-block-color 69
Disabled
69
Disabled
Disabled From version 69: this feature is behind the Experimental Web Platform Features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags.
79
Disabled
79
Disabled
Disabled From version 79: this feature is behind the Experimental Web Platform Features preference (needs to be set to enabled).
66 No 56
Disabled
56
Disabled
Disabled From version 56: this feature is behind the Experimental Web Platform Features preference (needs to be set to enabled).
No
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
border-block-color No 69
Disabled
69
Disabled
Disabled From version 69: this feature is behind the Experimental Web Platform Features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags.
66 48
Disabled
48
Disabled
Disabled From version 48: this feature is behind the Experimental Web Platform Features preference (needs to be set to enabled).
No No

See also

© 2005–2020 Mozilla and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/border-block-color