Untitled

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .draggable{
            position:absolute;
            padding:4px;
            z-index:1;
            top:0px;
            background:rgb(6, 173, 137);
            font-size:28px;
            color:white;
        }
        .draggable:hover{
            cursor: pointer;
        }
        .draggable:active{
            cursor:move;
        }
    </style>
</head>
<body>
    <div class="draggable">
        Draggable DIV
    </div>
    <script>
         let _drag = document.getElementsByClassName('draggable')[0];
        _drag.addEventListener('mousedown', (e) =>{
            _drag.classList.add('active-drag');
        });
        document.addEventListener('mouseup', (e) =>{
            _drag.classList.remove('active-drag');
        });
        document.addEventListener('mousemove', (e) =>{
            if(_drag.classList.contains('active-drag')) {
                _drag.style.top = e.clientY - _drag.offsetHeight/2 + "px";
                _drag.style.left = e.clientX - _drag.offsetWidth/2 + "px";
            }
        });
    </script>
</body>
</html>