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, or 0 if current document is not fully active.
VisualViewport: offsetTop property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since August 2021.
Value
A double.
Specifications
| Specification |
|---|
| CSSOM View Module # dom-visualviewport-offsettop |
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | ||
offsetTop |
61 | 79 | 91 | 48 | 13 | 61 | 68 | 45 | 13 | 8.0 | 61 | |
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https://developer.mozilla.org/en-US/docs/Web/API/VisualViewport/offsetTop