.clock-wrapper {
    position: relative;
    text-align: center;
}

#clock-wrapper > .prelude {
    font-size: 30px;
    font-weight: bold;
}

#clock-wrapper > .clock {
    width: 100%;
    height: 112px;
}


#clock-wrapper-sm > .prelude {
    font-size: 18px;
    font-weight: bold;
}

#clock-wrapper-sm > .clock {
    width: 100%;
    height: 58px;
}

.blank {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#ou {
    text-align: right;
    font-size: 0.75em;
}