<div id="filterbuttons">
    <button class="btn alarm">Alarms</button>
    <button class="btn warning">Warnings</button>
    <button class="btn operations">Operations</button>
    <button class="btn virtual">Virtual</button>
    <button class="btn communication">No communication</button>
    <button class="btn service">Service</button>
    <button class="btn predictor">Predictor</button>
    <button class="btn ticket">Tickets</button>
</div>