HTMLElement.offsetTop

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

SyntaxEdit

topPos = element.offsetTop;

Parameters

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

ExampleEdit

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

SpecificationEdit

Browser compatibilityEdit

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 alsoEdit

• MSDN: offsetTop Property