This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
MouseEvent.x property is an alias for the
As this property is not supported by all browsers, use the standard
|CSS Object Model (CSSOM) View Module
The definition of 'MouseEvent.x' in that specification.
|Working Draft||Initial definition|
|Feature||Edge||Firefox (Gecko)||Chrome||Internet Explorer||Opera||Safari|
|Basic support||(Yes)||No support ||(Yes)||6||(Yes)||(Yes)|
|Feature||Edge||Firefox Mobile (Gecko)||Android||IE Mobile||Opera Mobile||Safari Mobile|
|Basic support||(Yes)||No support ||?||?||?||?|
 See bug 424390