column-gap

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2017.

CSS column-gap 属性用来设置元素列之间的间隔（gutter）大小。

尝试一下

column-gap 一开始是 Multi-column 布局下的特有属性，后来在其他布局中也使用这个属性。如 CSS 盒子对齐中的表述，该属性已经可以在 Multi-column（多列布局）、Flexible Box（弹性盒子）以及 Grid layout（网格布局）中使用。

语法

css
/* Keyword value */
column-gap: normal;

/* <length> values */
column-gap: 3px;
column-gap: 2.5em;

/* <percentage> value */
column-gap: 3%;

/* Global values */
column-gap: inherit;
column-gap: initial;
column-gap: revert;
column-gap: revert-layer;
column-gap: unset;

column-gap 属性可以用以下值来表示。

取值

normal

表示列之间的间隔宽度。在 多列布局 时默认间隔为 1em，其他类型布局默认间隔为 0。

<length>

用 <length> 来定义列之间的间隔大小。而且 <length> 值必须是非负数的。

<percentage>

用 <percentage>（百分比）来定义列之间的间隔大小。同样的，<percentage> 值也必须是非负数的。

形式定义

初始值normal
适用元素multi-column elements, flex containers, grid containers
是否是继承属性否
Percentagesrefer to corresponding dimension of the content area
计算值as specified, with <length>s made absolute, and normal computing to zero except on multi-column elements
动画类型a length, percentage or calc();

形式语法

column-gap = 
  normal                     |
  <length-percentage [0,∞]>  

<length-percentage> = 
  <length>      |
  <percentage>

示例

Flex 布局

HTML

html
<div id="flexbox">
  <div></div>
  <div></div>
  <div></div>
</div>

CSS

css
#flexbox {
  display: flex;
  height: 100px;
  column-gap: 20px;
}

#flexbox > div {
  border: 1px solid green;
  background-color: lime;
  flex: auto;
}

结果

Grid 布局

HTML

html
<div id="grid">
  <div></div>
  <div></div>
  <div></div>
</div>

CSS

css
#grid {
  display: grid;
  height: 100px;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: 100px;
  column-gap: 20px;
}

#grid > div {
  border: 1px solid green;
  background-color: lime;
}

结果

Multi-column 布局

HTML

html
<p class="content-box">
  This is some multi-column text with a 40px column gap created with the CSS
  `column-gap` property. Don't you think that's fun and exciting? I sure do!
</p>

CSS

css
.content-box {
  column-count: 3;
  column-gap: 40px;
}

结果

规范

Specification
CSS Box Alignment Module Level 3
# column-row-gap
CSS Grid Layout Module Level 2
# gutters
CSS Multi-column Layout Module Level 1
# column-gap

浏览器兼容性

BCD tables only load in the browser

参见