border-inline

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.

CSS 属性 border-inline 为简写属性，用于在样式表中的某处同时设置逻辑行向边框的各属性值。

尝试一下

border-inline: solid;
writing-mode: horizontal-tb;

border-inline: dashed red;
writing-mode: vertical-rl;

border-inline: 1rem solid;
writing-mode: horizontal-tb;
direction: rtl;

<section class="default-example" id="default-example">
  <div class="transition-all" id="example-element">
    This is a box with a border around it.
  </div>
</section>

#example-element {
  background-color: #eee;
  color: #8b008b;
  padding: 0.75em;
  width: 80%;
  height: 100px;
  unicode-bidi: bidi-override;
}

border-inline 所对应的实体边框取决于元素的书写模式、行内方向和文本朝向。根据 writing-mode、direction 和 text-orientation 所定义的值，此属性对应于 border-top 和 border-bottom，或者 border-right 和 border-left 属性。

另一方向的边框可用 border-block 设置，此属性会设置 border-block-start 和 border-block-end。

属性构成

此属性为下列 CSS 属性的简写属性：

语法

css
border-inline: 1px;
border-inline: 2px dotted;
border-inline: medium dashed blue;

/* 全局值 */
border-inline: inherit;
border-inline: initial;
border-inline: revert;
border-inline: revert-layer;
border-inline: unset;

取值

border-inline 属性可用下列值中的至少一个指定，次序任意：

<'border-width'>

边框宽度。见 border-width。

<'border-style'>

边框线型。见 border-style。

<'color'>

边框颜色。见 color。

形式定义

初始值该简写所对应的每个属性：
适用元素所有元素
是否是继承属性否
计算值该简写所对应的每个属性：
动画类型该简写所对应的每个属性：

形式语法

border-inline = 
  <'border-block-start'>  

<border-block-start> = 
  <line-width>  ||
  <line-style>  ||
  <color>       

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

<line-style> = 
  none    |
  hidden  |
  dotted  |
  dashed  |
  solid   |
  double  |
  groove  |
  ridge   |
  inset   |
  outset

示例

竖排文本的边框

HTML

html
<div>
  <p class="exampleText">示例文本</p>
</div>

CSS

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

.exampleText {
  writing-mode: vertical-rl;
  border-inline: 5px dashed blue;
}

结果

规范

Specification
CSS Logical Properties and Values Level 1
# propdef-border-inline

浏览器兼容性

参见