<button type="button" class="amui-a-btn is--default btn" data-toggle="tooltip" data-placement="left" title="Tooltip on left">Tooltip on left</button>
<button type="button" class="amui-a-btn is--default btn" data-toggle="tooltip" data-placement="top" title="Tooltip on top">Tooltip on top</button>
<button type="button" class="amui-a-btn is--default btn" data-toggle="tooltip" data-placement="bottom" title="Tooltip on bottom">Tooltip on bottom</button>
<button type="button" class="amui-a-btn is--default btn" data-toggle="tooltip" data-placement="right" title="Tooltip on right">Tooltip on right</button>