* {
    box-sizing: border-box !important;
    padding: 0;
    margin: 0;
}

body {
    font-family: 'Roboto Mono', monospace;
    font-size: 4vmin;
    min-height: 100vh;
    margin-top: 0;
    place-items: center;
    background: linear-gradient(-45deg, #c4d2ef, #dfe6f6);
    overflow: hidden;
}

.hr,.min,.sec {
    width: 40%;
    height: 10vh;
    display: flex;
    justify-content: center;
    align-items: center;
    grid-gap: 4vmin;
    align-items: start;
}

.number {
    user-select: none;
    width: 8vmin;
    height: 8vmin;
    display: grid;
    place-items: center;
    color: #f9fbfd;
    transition: all 500ms 100ms ease;
    border-radius: 50%;
}

.number.pop {
    color: #3e6ccb;
    font-weight: bold;
    transform: scale(1.3);
    background-color: #dfe6f6;
    box-shadow: -1vmin -1vmin 2vmin -0.5vmin #f9fbfd, 1vmin 1vmin 2vmin #a9bee8;
}

.strip {
    transition: transform 500ms ease-in-out;
    border-radius: 1.333333333333333vmin;
    background-color: #dfe6f6;
    box-shadow: -1vmin -1vmin 2vmin -0.5vmin #f9fbfd, 1vmin 1vmin 2vmin #a9bee8;
}

.clock {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}