body {
    font-family: Arial, sans-serif;
    background-color: #111;
    color: #fff;
    text-align: center;
    padding: 20px;
}
.player, .playlist {
    margin: 20px auto;
    max-width: 400px;
}
audio {
    width: 100%;
    margin-top: 10px;
}
ul {
    list-style: none;
    padding: 0;
}
li {
    background: #222;
    margin: 5px;
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
}
li:hover {
    background: #444;
}