I am trying to insert a notifications tooltip in my dashboard page, but the tooltip is not working. I am very new to Angular, so any leads regarding this will be highly appreciated. module.ts .. import {MatTooltipModule} from '@angular/material'; .. @NgModule({ .. MatTooltipModule ..}) component.html <div class="notifications"> <i class="fa fa-bell fa-2x" aria-hiden="true" matTooltip="Tooltip!"></i> </div> Continue reading...