padding-inline-start - CSS（层叠样式表） 编辑

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。

概要

The padding-inline-start CSS property defines the logical inline start padding of an element, which maps to a physical padding depending on the element's writing mode, directionality, and text orientation. It corresponds to the padding-top, padding-right, padding-bottom, or padding-left property depending on the values defined for writing-mode, direction, and text-orientation.

It relates to padding-block-start, padding-block-end, and padding-inline-end, which define the other paddings of the element.

初始值	0
适用元素	all elements
是否是继承属性	否
Percentages	logical-width of containing block
适用媒体	visual
计算值	as length
Animation type	discrete
正规顺序	the unique non-ambiguous order defined by the formal grammar

句法

/* <length> values */
padding-inline-start: 10px;   /* An absolute length */
padding-inline-start: 1em;    /* A length relative to the text size */

/* <percentage> value */
padding-inline-start: 5%;     /* A padding relative to the block container's width */

/* Global values */
padding-inline-start: inherit;
padding-inline-start: initial;
padding-inline-start: unset;

Values

The padding-inline-start property takes the same values as the padding-left property.

Formal syntax

<'padding-left'>

范例

HTML Content

<div>
  <p class="exampleText">Example text</p>
</div>

CSS Content

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

.exampleText {
  writing-mode: vertical-lr;
  padding-inline-start: 20px;
  background-color: #C8C800;
}

规范

规范	状态	注释
CSS Logical Properties and Values Level 1 padding-inline-start	Editor's Draft	Initial definition

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

• Desktop
• Mobile

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	未实现[2]	41.0 (41.0)[1]	未实现	未实现	未实现[2]

Feature	Android	Firefox Mobile (Gecko)	IE Phone	Opera Mobile	Safari Mobile
Basic support	未实现	41.0 (41.0)[1]	未实现	未实现	未实现

[1] Available since Gecko 38, but behind the preference layout.css.vertical-text.enabled, then disabled by default. The preference has been removed in Gecko 51 and this property cannot be disabled since this version. From Firefox 3, Gecko supports the prefixed -moz-padding-start.

[2] From Chrome 2 and Safari 3, the similar prefixed -webkit-padding-start are supported.

也可以看看

• The mapped physical properties: padding-top, padding-right, padding-bottom, and padding-left
• writing-mode, direction, text-orientation