Tryit Editor v3.7

<!DOCTYPE html>
<html>
<head>
<style>
div {
  width: 200px;
  height: 100px;
  border: 1px solid black;
}
</style>
</head>
<body>

<p>Move you finger in the rectangle above, and get the coordinates of your finger.</p>

<p>When the finger is moved across the div, the p element below will display the horizontal and vertical coordinates of your finger, whose values are returned from the clientX and clientY properties on the 
TouchEvent object.</p>

function clearCoor() {
  document.getElementById("demo").innerHTML = "";
}
</script>

</body>

</html>