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Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

Specifies the y-coordinate of the first pixel that is not allocated to permanent or semipermanent user interface features.

Syntax

let availTop = window.screen.availTop;

Example

let setX = window.screen.width - window.screen.availLeft;
let setY = window.screen.height - window.screen.availTop;
window.moveTo(setX, setY);

Notes

In most cases, this property returns 0.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
availTop
Non-standard
Chrome Full support 40Edge No support NoFirefox Full support YesIE ? Opera Full support YesSafari Full support 6WebView Android Full support 40Chrome Android Full support 40Edge Mobile No support NoFirefox Android Full support YesOpera Android Full support YesSafari iOS ? Samsung Internet Android Full support Yes

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.

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