<div style="height:35vh;" class=" feedback-alert d-flex justify-content-center align-items-center">
    <div class="alert alert-success alert-dismissible fade show" role="alert">
        <strong>Response email sent successfully.</strong> 
        <button type="button" class="close" data-dismiss="alert" aria-label="Close">
            <span aria-hidden="true">&times;</span>
        </button>
    </div>
</div >