<munderover>
Baseline 2023Newly available
Since January 2023, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
<munderover>
MathML 元素用于在表达式上方和下方同时附加符号。
它使用以下语法:<munderover> base underscript overscript </munderover>
属性
该元素的属性包括全局 MathML 属性以及以下属性:
accent
-
<boolean>
,表示上标是否应被着重标识(即,绘制得更大并且更接近基本表达式)。 accentunder
-
<boolean>
,表示下标是否应被着重标识(即,绘制得更大并且更接近基本表达式)。
示例
html
<math display="block">
<munderover>
<mo>∑</mo>
<mrow>
<mi>n</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mrow>
<mo>+</mo>
<mn>∞</mn>
</mrow>
</munderover>
</math>
规范
Specification |
---|
MathML Core # underscripts-and-overscripts-munder-mover-munderover |
浏览器兼容性
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
munderover | ||||||||||||
accent | ||||||||||||
accentunder |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- No support
- No support
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.