html, body {
  height: 100%;
}

body {
    margin: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: #111;
}

button {
    background-color: #888;
    border: 1px solid #444;
    margin: 0.3em;
    padding: 1em 2em;
    cursor: pointer;
    min-width: 10em;
    font-size: 10pt;
    font-variant-caps: small-caps;
    transition: background-color 0.05s ease;
}

button:hover {
    background-color: #ccc;
}

button.active, button:active {
    background-color: #844;
    color: #ccc;
}

#spectrogram {
}

#spectrogram canvas {
    display: block;
}

#information {
    color: #888;
    position: fixed;
    bottom: 0.5em;
    right: 0.5em;
}