html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    color: white;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, monospace, sans-serif;
    background-color: black;
    overflow: hidden;
}

#clock {
    font-size: 30vw;
    display: flex;
    align-items: flex-end;
}

#seconds {
    font-size: 10vw;
    margin-bottom: 5%;
}

#date {
    font-size: 5vw;
    position: absolute;
    top: 5%;
}

#wake-lock-btn {
    position: absolute;
    bottom: 5%;
    left: 5%;
}