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<!DOCTYPE html> <html> <head> <script> function show_coords(event) { document.getElementById("demo").innerHTML = "X= " + event.clientX + "<br>Y= " + event.clientY; } </script> </head> <body> <p onmousedown="show_coords(event)"> Click this paragraph to display the x and y coordinates of the mouse pointer.</p> <p id="demo"></p> </body> </html>