border-block-end

尝试一下

Experimental: 这是一个实验中的功能
此功能某些浏览器尚在开发中，请参考浏览器兼容性表格以得到在不同浏览器中适合使用的前缀。由于该功能对应的标准文档可能被重新修订，所以在未来版本的浏览器中该功能的语法和行为可能随之改变。

border-block-end 属性是一个简写属性，用于在样式表中的单个位置设置各个逻辑块结尾边界属性值。

Syntax

border-block-end: 1px;
border-block-end: 2px dotted;
border-block-end: medium dashed blue;

border-block-end can be used to set the values for one or more of border-block-end-width (en-US), border-block-end-style (en-US), and border-block-end-color (en-US). The physical border to which it maps depends on the element's writing mode, directionality, and text orientation. It corresponds to the border-top, border-right, border-bottom, or border-left property depending on the values defined for writing-mode, direction, and text-orientation.

Related properties are border-block-start (en-US), border-inline-start (en-US), and border-inline-end (en-US), which define the other borders of the element.

初始值	as each of the properties of the shorthand: `border-top-width`: `medium` `border-top-style`: `none` `border-top-color`: `currentcolor`
适用元素	all elements
是否是继承属性	否
计算值	as each of the properties of the shorthand: `border-top-width`: the absolute length or `0` if `border-top-style` is `none` or `hidden` `border-top-style`: as specified `border-top-color`: computed color
Animation type	as each of the properties of the shorthand: border-block-end-color (en-US): a color border-block-end-style (en-US): discrete border-block-end-width (en-US): a length

Values

The border-block-end is specified with one or more of the following, in any order:

<'border-width'>: The width of the border. See border-width.
<'border-style'>: The line style of the border. See border-style.
<'color'>: The color of the border. See color.

Formal syntax

border-block-end = 
  <'border-top-width'>  ||
  <'border-top-style'>  ||
  <color>               

<color> = 
  <absolute-color-base>  |
  currentcolor           |
  <system-color>         |
  <device-cmyk()>        

<absolute-color-base> = 
  <hex-color> (en-US)    |
  <named-color>  |
  transparent    |
  <rgb()>        |
  <rgba()>       |
  <hsl()>        |
  <hsla()>       |
  <hwb()>        |
  <lab()>        |
  <lch()>        |
  <oklab()>      |
  <oklch()>      |
  <color()>      

<device-cmyk()> = 
  device-cmyk( <cmyk-component>{4} [ / <alpha-value> ]? )  

<rgb()> = 
  rgb( [ <percentage> | none ]{3} [ / [ <alpha-value> | none ] ]? )  |
  rgb( [ <number> | none ]{3} [ / [ <alpha-value> | none ] ]? )  

<hsl()> = 
  hsl( [ <hue> | none ] [ <percentage> | none ] [ <percentage> | none ] [ / [ <alpha-value> | none ] ]? )  

<hwb()> = 
  hwb( [ <hue> | none ] [ <percentage> | none ] [ <percentage> | none ] [ / [ <alpha-value> | none ] ]? )  

<lab()> = 
  lab( [ <percentage> | <number> | none ] [ <percentage> | <number> | none ] [ <percentage> | <number> | none ] [ / [ <alpha-value> | none ] ]? )  

<lch()> = 
  lch( [ <percentage> | <number> | none ] [ <percentage> | <number> | none ] [ <hue> | none ] [ / [ <alpha-value> | none ] ]? )  

<oklab()> = 
  oklab( [ <percentage> | <number> | none ] [ <percentage> | <number> | none ] [ <percentage> | <number> | none ] [ / [ <alpha-value> | none ] ]? )  

<oklch()> = 
  oklch( [ <percentage> | <number> | none ] [ <percentage> | <number> | none ] [ <hue> | none ] [ / [ <alpha-value> | none ] ]? )  

<color()> = 
  color( <colorspace-params> [ / [ <alpha-value> | none ] ]? )  

<cmyk-component> = 
  <number>      |
  <percentage>  

<alpha-value> = 
  <number>      |
  <percentage>  

<hue> = 
  <number>  |
  <angle>   |
  none      

<colorspace-params> = 
  <predefined-rgb-params>  |
  <xyz-params>             

<predefined-rgb-params> = 
  <predefined-rgb> [ <number> | <percentage> | none ]{3}  

<xyz-params> = 
  <xyz-space> [ <number> | none ]{3}  

<predefined-rgb> = 
  srgb          |
  srgb-linear   |
  display-p3    |
  a98-rgb       |
  prophoto-rgb  |
  rec2020       

<xyz-space> = 
  xyz      |
  xyz-d50  |
  xyz-d65

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-rl;
  border-block-end: 5px dashed blue;
}

Specification

Specification	Status	Comment
CSS Logical Properties and Values Level 1 border-block-end	Editor's Draft	Initial definition

Browser compatibility

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