HTMLElement.offsetTop

在此页

句法
范例
规范
浏览器兼容性
相关话题

HTMLElement.offsetTop read-only property returns the distance of the current element relative to the top of the offsetParent 节点。

句法

topPos = element.offsetTop;

参数

topPos is the number of pixels from the top of the closest relatively positioned parent element.

范例

var d = document.getElementById("div1");
var topPos = d.offsetTop;
if (topPos > 10) {
  // object is offset more
  // than 10 pixels from its parent
}

规范

规范	状态	注释
CSSOM (CSS 对象模型) 视图模块 The definition of 'offsetTop' in that specification.	工作草案

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`offsetTop`	Chrome 1	Edge 12	Firefox 1	IE 8	Opera 8	Safari 3	WebView Android 1	Chrome Android 18	Firefox Android 4	Opera Android 10.1	Safari iOS 1	Samsung Internet Android 1.0

图例

完整支持

In compliance with the specification, this property will return null on Webkit if the element is hidden (the style.display of this element or any ancestor is "none" ) or if the style.position of the element itself is set to "fixed" .

This property will return null on Internet Explorer (9) if the style.position of the element itself is set to "fixed" . (Having display:none does not affect this browser.)

元数据

最后修改： 2019 年 3 月 23 日

在此页

句法

参数

范例

规范

浏览器兼容性

图例

相关话题