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.

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.