MouseEvent: offsetX property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

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.

Value

A double floating point value in pixels.

Early versions of the spec defined this as an integer.

Specifications

Specification
CSSOM View Module
# dom-mouseevent-offsetx

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
offsetX

Legend

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Full support
Full support

See also