user-zoom

user-zoom CSS descriptor controls whether or not the user can change the zoom factor of a document defined by @viewport .

/* Keyword values */
user-zoom: zoom;
user-zoom: fixed;

句法

Disabling zooming capabilities prevents people experiencing low vision conditions from being able to read and understand page content.

相关 at-rule	`@viewport`
初始值	`zoom`
百分比	refer to the size of bounding box
计算值	如指定

zoom | fixed

@viewport {
  user-zoom: fixed;
}

规范	状态	注释
CSS Device Adaptation The definition of '"user-zoom" descriptor' in that specification.	工作草案	初始定义

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. 更新 GitHub 上的兼容性数据

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`user-zoom` descriptor	Chrome 不支持 29 — 84	Edge 完整支持 12 Prefixed 完整支持 12 Prefixed Prefixed Implemented with the vendor prefix: -ms-	Firefox 不支持 No	IE 完整支持 10 Prefixed 完整支持 10 Prefixed Prefixed Implemented with the vendor prefix: -ms-	Opera 完整支持 16	Safari 不支持 No	WebView Android 不支持 No	Chrome Android 不支持 29 — 84	Firefox Android 不支持 No	Opera Android 完整支持 16	Safari iOS 不支持 No	Samsung Internet Android 完整支持 2.0