<!DOCTYPE html>
<html>
<head>
    <title>Complete JavaScript Course</title>
    <style>
        .holder {
            display: inline-block;
            width: 300px;
            height: 300px;
            border: 1px solid black;
            padding: 10px;
        }
 
        .active {
            background-color: red;
        }
    </style>
</head>
<body> 
    <div class="holder">   
        <div id="output"></div>   
    </div>   
    <script>     
        const ele = document.querySelector(".holder");
        ele.addEventListener("mouseover", (e) => { e.target.classList.add("active"); })
        ele.addEventListener("mouseout", (e) => { e.target.classList.remove("active"); })
        ele.addEventListener("mousemove", coordin);
        function coordin() {
            let html = "X:" + event.clientX + " | Y:" + event.clientY;
            document.getElementById("output").innerHTML = html;
        }
    </script>
</body>
</html>
