border-block-style

The border-block-style CSS property defines the style of the logical block 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.

/* <'border-style'> values */
border-block-style: dashed;
border-block-style: dotted;
border-block-style: groove;

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

Syntax

Values

<'border-style'>

The line style of the border. See border-style.

Formal syntax

<'border-top-style'>

Example

HTML Content

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

CSS Content

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

.exampleText {
  writing-mode: vertical-lr;
  border: 5px solid blue;
  border-block-style: dashed;
}

Specification

Browser compatibility

See also

• This property maps to one of the physical border properties: border-top-style, border-right-style, border-bottom-style, or border-left-style.
• writing-mode, direction, text-orientation