inset-inline
Baseline
Widely available
*
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2021年4月.
* Some parts of this feature may have varying levels of support.
CSS 属性 inset-inline 定义了元素的逻辑行首和行末偏移，并根据元素的书写模式、行内方向和文本朝向对应至实体偏移。根据 writing-mode、direction 和 text-orientation 所定义的值，此属性对应于 top 和 bottom，或者 right 和 left 属性。
尝试一下
inset-inline: 5% 10%;
writing-mode: horizontal-tb;
inset-inline: 10px 40px;
writing-mode: vertical-rl;
inset-inline: 5% 10%;
writing-mode: horizontal-tb;
direction: rtl;
<section id="default-example">
<div class="example-container">
<div id="example-element">I am absolutely positioned.</div>
<p>
As much mud in the streets as if the waters had but newly retired from the
face of the earth, and it would not be wonderful to meet a Megalosaurus,
forty feet long or so, waddling like an elephantine lizard up Holborn
Hill.
</p>
</div>
</section>
.example-container {
border: 0.75em solid #ad1457;
padding: 0.75em;
text-align: left;
position: relative;
width: 100%;
min-height: 200px;
}
#example-element {
background-color: #07136c;
border: 6px solid #ffa000;
color: white;
position: absolute;
inset: 0;
}
属性构成
此属性为下列 CSS 属性的简写属性：
语法
css
/* 长度值 */
inset-inline: 3px 10px;
inset-inline: 2.4em 3em;
inset-inline: 10px; /* 应用于行首和行末 */
/* 包含块的宽度或高度的百分比 */
inset-inline: 10% 5%;
/* 关键词值 */
inset-inline: auto;
/* 全局值 */
inset-inline: inherit;
inset-inline: initial;
inset-inline: revert;
inset-inline: revert-layer;
inset-inline: unset;
取值
inset-inline 属性的取值与 left 属性相同。
形式定义
| 初始值 | 该简写所对应的每个属性：
|
|---|---|
| 适用元素 | positioned elements |
| 是否是继承属性 | 否 |
| Percentages | logical-width of containing block |
| 计算值 | 该简写所对应的每个属性：
|
| 动画类型 | a length, percentage or calc(); |
形式语法
inset-inline =
<'top'>{1,2}
<top> =
auto |
<length-percentage> |
<anchor()> |
<anchor-size()>
<length-percentage> =
<length> |
<percentage>
<anchor()> =
anchor( <anchor-name>? &&
<anchor-side> , <length-percentage>? )
<anchor-size()> =
anchor-size( [ <anchor-name> || <anchor-size> ]? , <length-percentage>? )
<anchor-name> =
<dashed-ident>
<anchor-side> =
inside |
outside |
top |
left |
right |
bottom |
start |
end |
self-start |
self-end |
<percentage> |
center
<anchor-size> =
width |
height |
block |
inline |
self-block |
self-inline
示例
设置行首和行末偏移
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-lr;
position: relative;
inset-inline: 20px 50px;
background-color: #c8c800;
}
结果
规范
| Specification |
|---|
| CSS Logical Properties and Values Level 1 # propdef-inset-inline |
| CSS Positioned Layout Module Level 3 # propdef-inset-inline |
浏览器兼容性
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参见
- 对应的实体属性：
top、right、bottom和left - 对应的实体简写属性：
inset - 对应的块向简写属性：
inset-block writing-mode、direction、text-orientation