Alert isn't working

Alert isn't working

My code:
    <script src= https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>

    <script type="text/javascript">
    
    $('.Test').click(function(evt){
        alert('123');
        evt.preventDefault();
       
    });
    </script>    
<div class = "Test">Test</div>

When I clicked the div, alert isn't working.Any one help to get this alert?