inline-size

Baseline Widely available *

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

* Some parts of this feature may have varying levels of support.

CSS 属性 inline-size 根据元素的书写模式定义了元素区块的横向或纵向尺寸。根据 writing-mode 的值，此属性对应于 width 或 height 属性。

若为纵向书写模式，则 inline-size 的值对应于元素的高度；否则对应于元素的宽度。与此相关的属性为 block-size，此属性定义了元素另一方向的尺度。

尝试一下

inline-size: 150px;
writing-mode: horizontal-tb;

inline-size: 150px;
writing-mode: vertical-rl;

inline-size: auto;
writing-mode: horizontal-tb;

inline-size: auto;
writing-mode: vertical-lr;


  

    This is a box where you can change the inline-size.
  




#example-element {
  display: flex;
  flex-direction: column;
  background-color: #5b6dcd;
  height: 80%;
  justify-content: center;
  color: #ffffff;
}

语法

css
/*  值 */
inline-size: 300px;
inline-size: 25em;

/*  值 */
inline-size: 75%;

/* 关键词值 */
inline-size: max-content;
inline-size: min-content;
inline-size: fit-content(20em);
inline-size: auto;

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

取值

inline-size 属性的取值与 width 和 height 属性相同。

形式定义

初始值auto
适用元素same as width and height
是否是继承属性否
Percentagesinline-size of containing block
计算值same as width and height
动画类型a length, percentage or calc();

形式语法

inline-size = 
  <'width'>  

 = 
  auto                                      |
                   |
  min-content                               |
  max-content                               |
  fit-content(  )  |
                               |
                             

 = 
        |
    

 = 
  calc-size(  ,  )  

 = 
  anchor-size( [  ||  ]? , ? )  

 = 
    |
     |
  any             |
        

 = 
   [ [ '+' | '-' ]  ]*  

 = 
    

 = 
  width        |
  height       |
  block        |
  inline       |
  self-block   |
  self-inline  

 = 
   [ [ '*' | / ]  ]*  

 = 
          |
       |
      |
    |
  (  )  

 = 
  e          |
  pi         |
  infinity   |
  -infinity  |
  NaN

示例

以像素为单位设置行向尺寸

HTML

html
示例文本

CSS

css
.exampleText {
  writing-mode: vertical-rl;
  background-color: yellow;
  inline-size: 110px;
}

结果

规范

Specification
CSS Logical Properties and Values Level 1
# dimension-properties
CSS Box Sizing Module Level 4
# sizing-values

浏览器兼容性

参见