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.
var offsetTop = VisualViewport.offsetTop
A double.
| Specification | Status | Comment |
|---|---|---|
| Visual Viewport API The definition of 'offsetTop' in that specification. | Draft | Initial definition. |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 60 | ? | ? | 47 | ? |
| Feature | Android Webview | Chrome for Android | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | 60 | 60 | ? | ? | ? | 47 | ? |
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https://developer.mozilla.org/en-US/docs/Web/API/VisualViewport/offsetTop