The `screenX` property returns the distance between the left edge of a browser window and the left side of the display screen.
The return value of this property is pixel based. So if the value is 200, that means the distance is 200 pixels.
Note: if we maximize a browser window, the returned value of this property becomes 0! Because now there’s no distance between both edges.
Window screenX Property Syntax:
Depending on the current position of the browser window, the value of this property varies.