জেকুয়েরী mouseover

<!DOCTYPE html>
<html>
<script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
<body>

<div style="padding:30px; background:lightgray;">

মাউস ওপরে আনুন

</div>

<script>
$(document).ready(function(){
  $("div").mouseover(function(){
    $(this).css("background", "lightgreen");
  });

});
</script>
</body>
</html>