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VisualViewport.offsetTop

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

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

Syntax

var offsetTop = VisualViewport.offsetTop

Value

A double.

Specifications

Specification Status Comment
Visual Viewport API
The definition of 'offsetTop' in that specification.
Draft Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 61 No 63
Disabled
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.
No 48 No
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 61 61 No 63
Disabled
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.
48 No ?

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https://developer.mozilla.org/en-US/docs/Web/API/VisualViewport/offsetTop