* {
    box-sizing: border-box;
    margin: 0;
}

body {
    background-color: black;
    color: rgb(82, 82, 82);
    font-size: 5rem;
}

.clock-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100dvw;
    height: 100dvh;
}

.clock {
    display: flex;
    flex-direction: column;
    gap: 1vmin;
}

.row {
    display: flex;
    flex-direction: row;
    gap: 1vmin;
}

.row * {
    --size: 7.5vmin;
    width: var(--size);
    height: var(--size);
    font-size: var(--size);
    text-align: center;
}

.highlighted {
    color: white;
    
    text-shadow:     0 0 5px #fff,
    0 0 10px #fff,
    0 0 20px #fff,
    0 0 40px #0ff,
    0 0 80px #0ff,
    0 0 90px #0ff,
    0 0 100px #0ff,
    0 0 150px #0ff;
}