HTML
<noscript>
element
defines a section of HTML to be inserted if a script type on the page is unsupported or if scripting is currently turned off in the browser.
| 内容类别 | 元数据内容 , flow content , 措词内容 . |
|---|---|
| 准许内容 |
When scripting is disabled and when it is a descendant of the
<head>
element: in any order, zero or more
<link>
elements, zero or more
<style>
elements, and zero or more
<meta>
元素。
When scripting is disabled and when it isn't a descendant of the
<head>
element: any
transparent content
, but no
<noscript>
element must be among its descendants.
Otherwise: flow content or phrasing content. |
| Tag omission | None, both the starting and ending tag are mandatory. |
| Permitted parents |
Any element that accepts
措词内容
, if there are no ancestor
<noscript>
element, or in a
<head>
element (but only for an HTML document), here again if there are no ancestor
<noscript>
元素。
|
| Implicit ARIA role | 无对应角色 |
| Permitted ARIA roles |
No
role
permitted
|
| DOM 接口 |
HTMLElement
|
此元素只包括 全局属性 .
<noscript> <!-- anchor linking to external file --> <a href="https://www.mozilla.com/">External Link</a> </noscript> <p>Rocks!</p>
Rocks!
Rocks!
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
noscript
|
Chrome 完整支持 Yes | Edge 完整支持 12 | Firefox 完整支持 1 | IE 完整支持 Yes | Opera 完整支持 Yes | Safari 完整支持 Yes | WebView Android 完整支持 Yes | Chrome Android 完整支持 Yes | Firefox Android 完整支持 4 | Opera Android 完整支持 Yes | Safari iOS 完整支持 Yes | Samsung Internet Android 完整支持 Yes |
完整支持
<canvas>
<noscript>
<script>