CSS border-block-end-width Property

CSS border-block-end-width

The border-block-end-width property in CSS specifies the width of an element’s block-end border. The block-end side is determined by the element’s writing mode, directionality, and text orientation. This property allows developers to control the thickness of the block-end border using predefined keywords or specific length values.

Syntax of border-block-end-width

</>

Copy

border-block-end-width: medium | thin | thick | length | initial | inherit;

Values

Value	Description
`medium`	Specifies a medium width for the block-end border. This is the default value.
`thin`	Specifies a thin width for the block-end border.
`thick`	Specifies a thick width for the block-end border.
`length`	Specifies the exact width of the block-end border using any valid CSS length unit (e.g., `2px`, `1em`, `5%`).
`initial`	Sets the property to its default value (`medium`).
`inherit`	Inherits the value from its parent element.

Default Value

medium

Examples for border-block-end-width

Using the CSS border-block-end-width Property

The following examples demonstrate how to use the border-block-end-width property to set the width of the block-end border:

</>

Copy

/* Set block-end border width to medium (default) */
.element {
  border-block-end-width: medium;
}

/* Set block-end border width to thin */
.element {
  border-block-end-width: thin;
}

/* Set block-end border width to a specific length (5px) */
.element {
  border-block-end-width: 5px;
}

/* Inherit the block-end border width from the parent */
.element {
  border-block-end-width: inherit;
}

Example for a Thick Block-End Border

Below is an example demonstrating how to use border-block-end-width: thick; to apply a thick border to the block-end side:

index.html

</>

Copy

<!DOCTYPE html>
<html lang="en">
<head>
<style>
  .box {
    width: 300px;
    border-block-end-width: thick;
    border-block-end-style: solid;
    border-block-end-color: red;
  }
</style>
</head>
<body>

<h2 class="box">Lorem Ipsum</h2>

</body>
</html>

Example for a Block-End Border of 10px

border-block-end-width: 10px;

</>

Copy

<!DOCTYPE html>
<html lang="en">
<head>
<style>
  .box {
    width: 300px;
    border-block-end-width: 10px;
    border-block-end-style: solid;
    border-block-end-color: red;
  }
</style>
</head>
<body>

<h2 class="box">Lorem Ipsum</h2>

</body>
</html>

Browser Support

The border-block-end-width property is supported in modern browsers. Below is a compatibility table:

Browser	Version
Chrome	69.0
Edge	79.0
Firefox	41.0
Safari	12.1
Opera	56.0

TutorialKart

CSS border-block-end-width Property