#clock {
    position: relative;
    padding-top: 100%;
}
#clock * {
    pointer-events: none;
    user-select: none;
}
#clock-face {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}
#clock-indicator-small {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}
#clock-indicator-big {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}