#microphoneInfo {
    max-width: 600px;
    margin: 0 auto;
}

#volumeMeter {
    background-color: #f5f5f5;
    border: 1px solid #ddd;
    width: 100%;
    height: 150px;
}

#testHistory {
    margin-top: 20px;
    margin: 0 auto;
}

#testHistory li {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#testHistory audio {
    max-width: 100%;
}

#startStopButton {
    padding: 10px 30px;
    font-size: 1.2rem;
}

#status {
    font-weight: bold;
}

#audioPlayback {
    width: 100%;
    max-width: 500px;
}