<div class="col-sm-10 col-sm-offset-3 main col-md-10 col-md-offset-2 main">

    <div class="col-sm-6 col-md-6 ">
        <a href="<?php echo base_url(); ?>manage-course-group-invitation" class="btn btn-sm btn-success">Group Invitation</a>
        <a href="<?php echo base_url(); ?>manage-course-person-invitation" class="btn btn-sm btn-success">Person Invitation</a>


        <!--</div>-->
    </div>
</div>