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              <div class = "container">
  <h5 class = "mainText">🖱️ Coordinates of your mouse: <br> hover over this container </h5>
  overflow-y: hidden;
.container {
  width: 80vw;
  height: 80vh;
  background: rgba(20,20,20,0.5);
  margin:5% auto;
  border-radius: 20px;
  border: 10px solid black;
  pointer-events: none;
  font-family: 'Roboto Condensed';
  color: white;
  text-align: center;
  font-size: 280%;
  margin: 25vh 18vw;

              const text  = document.querySelector('.mainText');
const mainContainer  = document.querySelector('.container');

mainContainer.addEventListener("mousemove", runEvent);
//event handler
function runEvent(e){
    //print Coordinates of the mouse on move on the targeted element: 
    text.textContent = `MouseX: ${e.offsetX},  MouseY: ${e.offsetY}`;
    //change body background color taking the coordinates as values of rgb:
    document.body.style.backgroundColor = `rgb(${e.offsetX}, 180, ${e.offsetY})`;
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