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<html><body onclick="showCoords(event)" style="border:1px solid black;padding:4px"><h1>Mouse Events</h1><h2>The screenX, screenY, clientX and clientY Properties</h2><div><p>Click different places in this document to get the x (horizontal) and y (vertical) coordinates of the mouse pointer.</p><p id="demo">Coordinates:</p></div><script>function showCoords(event) { let cX = event.clientX; let cY = event.clientY; let sX = event.screenX; let sY = event.screenY; let coords1 = "clientX: " + cX + ", clientY: " + cY; let coords2 = "screenX: " + sX + ", screenY: " + sY; document.getElementById("demo").innerHTML = coords1 + "<br>" + coords2;}</script></body></html>