CSS - border-block-end-width Property

The element's logical block-end border width is set by the border-block-end-width CSS property, which adjusts to the physical border width according to the writing mode, directionality, and text orientation of the element.

Its value, depending on the writing-mode, direction and text-orientation given, is interpreted as border-right-width, border-bottom-width, or border-left-width
The remaining border widths of the element are defined by the related attributes border-block-start-width, border-inline-start-width, and border-inline-end-width.

Possible value

<'border-width'> - The width of the border.

Syntax

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

Applies to

All the HTML elements.

CSS border-block-end-width - length Value

The following example demonstrates the usage of border-block-end-width property.

<html>
<head>
<style>
   body {
      font-family: 'Arial', sans-serif;
      margin: 50px;
      padding: 50px;
      background-color: #f0f0f0;
   }
   .new-container {
      background-color: #d6e39f;
      width: 400px;
      height: 400px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 15px;
      box-shadow: 4px 4px 12px rgba(0, 0, 0, 0.8);
   }
   .custom-border {
      border: 4px dashed #637804;
      border-block-end-style: solid;
      border-block-end-width: 10px;
      padding: 15px;
      margin: 10px;
      font-size: 20px;
      font-weight: bold;
      color: #333;
   }
</style>
</head>
<body>
<div class="new-container">
<p class="custom-border">A border-block-end-width property example with length value.</p>
</div>
</body>
</html>

CSS border-block-end-width - thin value.

The following example demonstrates the usage of border-block-end-width property along with thin width value.

<html>
<head>
<style>
   body {
      font-family: 'Arial', sans-serif;
      margin: 50px;
      padding: 50px;
      background-color: #f0f0f0;
   }
   .new-container {
      background-color: #f0ccc5;
      width: 400px;
      height: 400px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 15px;
      box-shadow: 4px 4px 12px rgba(0, 0, 0, 0.8);
   }
   .custom-border {
      border: 4px double #e6350e;
      border-block-end-style: solid;
      border-block-end-width: thin;
      padding: 15px;
      margin: 10px;
      font-size: 22px;
      font-weight: bold;
      color: #333;
   }
</style>
</head>
<body>
<div class="new-container">
<p class="custom-border">A border-block-end-width example with thin width value.</p>
</div>
</body>
</html>

CSS border-block-end-width - medium value

The following example demonstrates the usage of border-block-end-width property along with medium width value.

<html>
<head>
<style>
   body {
      font-family: 'Arial', sans-serif;
      margin: 50px;
      padding: 50px;
      background-color: #f0f0f0;
   }
   .new-container {
      background-color: #b8e2f5;
      width: 400px;
      height: 400px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 15px;
      box-shadow: 4px 4px 12px rgba(0, 0, 0, 0.8);
   }
   .custom-border {
      border: 8px double #02a0e3;
      border-block-end-style: solid;
      border-block-end-width: medium;
      padding: 15px;
      margin: 10px;
      font-size: 22px;
      font-weight: bold;
      color: #333;
   }
</style>
</head>
<body>
<div class="new-container">
<p class="custom-border">A border-block-end-width example with medium width value.</p>
</div>
</body>
</html>

CSS border-block-end-width - thick value

The following example demonstrates the usage of border-block-end-width property along with thick width value.

<html>
<head>
<style>
   body {
      font-family: 'Arial', sans-serif;
      margin: 50px;
      padding: 50px;
      background-color: #f0f0f0;
   }
   .new-container {
      background-color: #b8e2f5;
      width: 400px;
      height: 400px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 15px;
      box-shadow: 4px 4px 12px rgba(0, 0, 0, 0.8);
   }
   .custom-border {
      border-block-end-style: solid;
      border-block-end-width: thick;
       border-block-end-color: #02a0e3;
      padding: 15px;
      margin: 10px;
      font-size: 22px;
      font-weight: bold;
      color: #333;
   }
</style>
</head>
<body>
<div class="new-container">
<p class="custom-border">A border-block-end-width example with thick width value.</p>
</div>
</body>
</html>

CSS border-block-end-width - Writing Mode

The following example demonstrates the usage of border-block-end-width property along with length value and vertical writing mode.

<html>
<head>
<style>
   body {
      font-family: 'Arial', sans-serif;
      margin: 50px;
      padding: 50px;
      background-color: #f0f0f0;
   }
   .vertical-container {
      background-color: #eaf5d7;
      width: 400px;
      height: 400px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 15px;
      box-shadow: 4px 4px 12px rgba(0, 0, 0, 0.8);
   }
   .vertical-border {
      writing-mode: vertical-rl;
      border: 3px solid #854905;
      border-block-end-style: dotted;
      border-block-end-width: 6px;
      padding: 12px;
      margin: 10px;
      font-size: 20px;
      font-weight: bold;
      color: #333;
   }
</style>
</head>
<body>
<div class="vertical-container">
<p class="vertical-border">A border-block-end-width example with vertical writing mode.</p>
</div>
</body>
</html>