// add this code in app.css

.alert-dismissable,.alert-dismissible{padding-right:35px}
.alert-dismissable .close,.alert-dismissible .close{position:relative;top:-10px;right:-25px;color:inherit}

// change the alert class to "alert alert-success alert-dismissible" and href link
 <div class="alert alert-success alert-dismissible">
                            <a href="#" class="close" data-dismiss="alert" aria-label="close">&times;</a>
                            {{ __('A fresh verification link has been sent to your email
</div>