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• 句法
• 形式定义
• 形式句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

orientation CSS descriptor controls the orientation of a document defined by @viewport .

/* Keyword values */
orientation: auto;
orientation: portrait;
orientation: landscape;
					

For a UA/device where the orientation is changed upon tilting the device, an author can use this descriptor to inhibit the orientation change.

句法

值

auto

The user agent will set the document's orientation automatically, typically based on the device's orientation as determined by an accelerometer (if the device has such a hardware sensor), although there is often a user-controlled, OS-level "Lock orientation" setting that will trump the accelerometer reading.

portrait

The document should be locked into portrait orientation.

landscape

The document should be locked into landscape orientation.

形式定义

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

形式句法

auto | portrait | landscape
					

范例

Setting viewport orientation

@viewport {
  orientation: landscape;
}
					

规范

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

浏览器兼容性

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
orientation descriptor	Chrome 不支持 No	Edge 不支持 12 — 79 Prefixed 不支持 12 — 79 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 不支持 No	Safari 不支持 No	WebView Android 不支持 No	Chrome Android 不支持 No	Firefox Android 不支持 No	Opera Android 不支持 11.1 — 14 Prefixed 不支持 11.1 — 14 Prefixed Prefixed Implemented with the vendor prefix: -o-	Safari iOS 不支持 No	Samsung Internet Android 不支持 No

图例

完整支持

完整支持

不支持

不支持

要求使用供应商前缀或不同名称。

要求使用供应商前缀或不同名称。

另请参阅

• @viewport

元数据

• 最后修改： Jul 22, 2020

相关话题

1. CSS
2. CSS 参考
3. CSS Device Adaptation
4. At-Rules

   1. @viewport