div.music-block {
  display: block;
  width: auto;
  border: 2px dashed blue;
  background-color: #ffffffbb;
  margin: 10px;
  margin-left: 25%;
  margin-right: 25%;
  padding: 20px;
  display: flex;
  flex-direction: column;
}

    h1.song-title {
      font-size: 20px;
      margin: 0;
      margin-bottom: 10px;
      color: blue;
    }

    audio.tunes-player {
      width: 100%;
      margin: 0;
      padding: 0;
    }

    hr.tunes-hdivider {
      width: 95%;
      margin-top: 20px;
      margin-bottom: 20px;
      color: blue;
    }