I have the following toggle- button (bootstrap). Ich I click the button there is not a real difference of color - so its hard to see if the button is clicked or not. Is there a possibility to change it with css in that way that I can set e.g. the color of the clicked button?
<button type="button" class="btn btn-xs btn-info" data-toggle="button" ng-click="vm.changeAbsenceTrigger = !vm.changeAbsenceTrigger">
<span class="glyphicon glyphicon-pencil cursorPointer" aria-hidden="true"></span>
</button>