VisualViewport.offsetTop

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.

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实验性: 这是一项实验性技术
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VisualViewport 接口的只读属性 offsetTop 返回视觉视口的顶部相对于布局视口的顶部的偏移量，以 CSS 像素为单位。

语法

var offsetTop = VisualViewport.offsetTop

值

一个双精度值。

规范

Specification
CSSOM View Module
# dom-visualviewport-offsettop

浏览器兼容性