This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The offsetX read-only property of the MouseEvent interface provides the offset in the X coordinate of the mouse pointer between that event and the padding edge of the target node. 


var xOffset = instanceOfMouseEvent.offsetX;

Return value

A double floating point value. Early versions of the spec defined this as an integer. See the Browser compatibility section for details.


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

Browser compatibility

BCD tables only load in the browser

See also