<!DOCTYPE html>

<html>

<head>

<title>Removable Square</title>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>

<style>

body {

  margin: 0;

  padding: 0;

}


.square {

  width: 100px;

  height: 100px;

  border: 1px solid black;

  position: absolute;

  top: 50%;

  left: 50%;

  transform: translate(-50%, -50%);

}


.square:hover {

  cursor: move;

}

</style>

</head>

<body>

<div class="square"></div>

<a href="index.html">This is the code</a>

<script>

$(document).ready(function() {

  var square = $(".square");


  square.mousedown(function(event) {

    var startX = event.pageX;

    var startY = event.pageY;


    $(document).mousemove(function(event) {

      var deltaX = event.pageX - startX;

      var deltaY = event.pageY - startY;


      square.css("left", square.offset().left + deltaX);

      square.css("top", square.offset().top + deltaY);

    });

  });

});

</script>

</body>

</html>