.countdown_timer {
    text-align:center;
}

.countdown_timer .timer {
    display: inline-flex;
    justify-content: center;
}

.wp-admin .countdown-tick, .wp-admin .sep {
    margin: 0 1rem;
}

.countdown-tick,
.sep {
    font-size: 4.5rem;
    line-height: 1;
    padding-bottom: 0;
    display: inline-block;
    font-weight: bold;
    margin: 1rem 0;
}

.sep {
    line-height: .75;
}

.countdown-label {
    display: block;
    margin: 0;
}

@media only screen and (max-width: 420px) {

    .countdown-tick,
    .sep {
        font-size: 2.5rem;
    }
}

@media only screen and (max-width: 365px) {

    .countdown-tick,
    .sep {
        font-size: 2rem;
    }

    .countdown-label {
        font-size: 0.7rem;
    }
}

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