<button id="topology_info_button" type="button" title="Info keyboard" class="btn btn-default" data-toggle="modal"
data-target="#modalTopologyInfoButton"><i class="fa fa-keyboard-o"></i></button>
<button id="topology_info_button" type="button" title="Info keyboard" class="btn btn-default" data-toggle="modal"
data-target="#modalTopologyInfoButton"><i class="fa fa-keyboard-o"></i></button>