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

Syntax

topPos = element.offsetTop;

Parameters

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

Example

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

Specification

Specification Status Comment
CSS Object Model (CSSOM) View Module
The definition of 'offsetTop' in that specification.
Working Draft  

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support (Yes) (Yes) (Yes) (Yes) (Yes)
Feature Android Android Webview Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support ? (Yes) ? ? ? ? ? (Yes)

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.)

See also

Document Tags and Contributors

 Last updated by: jwhitlock,