<divclass="row text-center"><divclass="col-md-6 col-xl-3 mt-2 mb-2"><buttontype="button"class="btn btn-purple"data-toggle="tooltip"data-placement="top"title="Tooltip on top">Tooltip on top</button></div><divclass="col-md-6 col-xl-3 mt-2 mb-2"><buttontype="button"class="btn btn-cyan"data-toggle="tooltip"data-placement="right"title="Tooltip on right">Tooltip on right</button></div><divclass="col-md-6 col-xl-3 mt-2 mb-2"><buttontype="button"class="btn btn-pink"data-toggle="tooltip"data-placement="bottom"title="Tooltip on bottom">Tooltip on bottom</button></div><divclass="col-md-6 col-xl-3 mt-2 mb-2"><buttontype="button"class="btn btn-teal"data-toggle="tooltip"data-placement="left"title="Tooltip on left">Tooltip on left</button></div></div>