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border-block-end-width

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨2020年1月⁩.

CSS 属性border-block-end-width 定义了元素的逻辑块末的边框宽度，并根据元素的书写模式、行内方向和文本朝向对应至实体边框宽度。根据writing-mode、direction 和text-orientation 所定义的值，此属性对应于border-top-width、border-right-width、border-bottom-width 或border-left-width 属性。

尝试一下

border-block-end-width: thick;writing-mode: horizontal-tb;

border-block-end-width: thick;writing-mode: vertical-rl;

border-block-end-width: 4px;writing-mode: horizontal-tb;

border-block-end-width: 4px;writing-mode: vertical-lr;

<section>  <div>    This is a box with a border around it.  </div></section>

#example-element {  background-color: palegreen;  color: #000;  border: 0 solid crimson;  padding: 0.75em;  width: 80%;  height: 100px;  unicode-bidi: bidi-override;}

语法

css

/* 边框宽度值 */border-block-end-width: 5px;border-block-end-width: thick;/* 全局值 */border-block-end-width: inherit;border-block-end-width: initial;border-block-end-width: revert;border-block-end-width: revert-layer;border-block-end-width: unset;

与此相关的属性有border-block-start-width、border-inline-start-width 和border-inline-end-width，这些属性定义了元素其他边框的宽度。

取值

<'border-width'>: 边框宽度。见border-width。

形式定义

初始值	`medium`
适用元素	所有元素
是否是继承属性	否
Percentages	logical-width of containing block
计算值	absolute length;`0` if the border style is`none` or`hidden`
动画类型	按计算值的类型

形式语法

border-block-end-width =
<line-width>

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

示例

竖排文本的边框宽度

HTML

html

<div>  <p>示例文本</p></div>

CSS

css

div {  background-color: yellow;  width: 120px;  height: 120px;}.exampleText {  writing-mode: vertical-lr;  border: 1px solid blue;  border-block-end-width: 5px;}