VisualViewport.offsetleft

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这是一个实验中的功能
此功能某些浏览器尚在开发中,请参考浏览器兼容性表格以得到在不同浏览器中适合使用的前缀。由于该功能对应的标准文档可能被重新修订,所以在未来版本的浏览器中该功能的语法和行为可能随之改变。

The offsetLeft read-only property of the VisualViewport interface returns the offset of the left edge of the visual viewport from the left edge of the layout viewport in CSS pixels.

Syntax

var offsetLeft = VisualViewport.offsetLeft

Value

A double.

Specifications

Specification Status Comment
Visual Viewport API
offsetLeft
Draft Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
offsetLeft
Experimental
Chrome Full support 61Edge Full support 79Firefox Full support 63
Disabled
Full support 63
Disabled
Disabled From version 63: this feature is behind the dom.visualviewport.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE No support NoOpera Full support 48Safari Full support 13WebView Android Full support 61Chrome Android Full support 61Firefox Android Full support 68
Full support 68
Full support 63
Disabled
Disabled From version 63: this feature is behind the dom.visualviewport.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android Full support 45Safari iOS Full support 13Samsung Internet Android Full support 8.0

Legend

Full support  
Full support
No support  
No support
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
User must explicitly enable this feature.
User must explicitly enable this feature.