body {
    height: 10000vh;
    background-color: #111;
}

#outer-dial {
    width: min(80vh, 80vw);
    aspect-ratio: 1;
    border-radius: 100%;
    background-color: #9993;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

#dial {
    background-color: #9993;
    width: 100%;
    height: 100%;
    border-radius: 100%;
    color: black;
    text-align: center;
    font-size: 6em;
    display: flex;
    justify-content: center;
    align-items: center;
}