1. X and Y coordinates of the mouse in the visible region of the
e.clientX return mouse coordinates relative to X visible region of the browser window
Back e.clientY mouse Y coordinates relative to the visible region of the browser window
2. X and Y coordinates of the mouse in the pages of the document
e.pageX return the mouse coordinates relative to the page of the document X IE9 + support
e.pageY return the mouse coordinates relative to the page document Y IE9 + support
3. mouse computer screen X and Y coordinates
e.screenX return the mouse relative to the X coordinate of the computer screen
e.screenY Returns the mouse relative to the Y coordinate of the computer screen