mybuddy/core/static/scss/timers.scss

#view-timer-detail {
    #timer-status {
        font-size: $display4-size;
        font-weight: $display4-weight;
    }
}

@include media-breakpoint-up(sm) {
    #view-timer-detail {
        #timer-status {
            font-size: $display1-size;
            font-weight: $display1-weight;
        }
    }
}