body {
    margin: 0;
    padding: 0;
    background-color: black;
    color: white;
}

#digital-human-container {
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

#voice-input-container {
    padding: 20px;
    text-align: center;
}

button {
    margin: 10px;
    padding: 10px 20px;
    font-size: 16px;
}