<msub>

Baseline 2023
Newly available

Since January 2023, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

<msub> MathML 元素用于为表达式附加下标。

使用语法如下:<msub> base subscript </msub>

属性

该元素的属性包括全局 MathML 属性和以下已弃用的属性:

subscriptshift 已弃用 非标准

<length-percentage> 值,表示下标基线向下移动的最小距离。

备注: 对于 subscriptshift 属性,一些浏览器可能也会接受旧版 MathML 长度

示例

html
<math display="block">
  <msub>
    <mi>X</mi>
    <mn>1</mn>
  </msub>
</math>

规范

Specification
MathML Core
# subscripts-and-superscripts-msub-msup-msubsup

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
msub
subscriptshift
DeprecatedNon-standard

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
Non-standard. Check cross-browser support before using.
Deprecated. Not for use in new websites.

参见