.audio-toggle {
    position: fixed;
    z-index: 10000;
    right: 12px;
    bottom: 12px;
    padding: 7px 9px;
    border: 1px solid #242424;
    border-radius: 0;
    background: #000;
    color: #666;
    font: 600 10px/1 Helvetica, Arial, sans-serif;
    letter-spacing: 0.12em;
    opacity: 0.55;
    transition: color 120ms linear, border-color 120ms linear, opacity 120ms linear;
}

.audio-toggle:hover,
.audio-toggle:focus-visible {
    border-color: #00baff;
    color: #00baff;
    opacity: 1;
}

.audio-toggle[aria-pressed="true"] {
    color: #8a8a8a;
}