@media (min-width: 640px) {
  body, html {
    width: 100%;
    height: 100%;
    background-image: url("../img/background/playlist.jpg");
    background-attachment: fixed;
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
    overflow: hidden;
  }
}

@media (max-width: 640px) {
  body, html {
    width: 100%;
    height: 100%;
    background-image: url("../img/background/playlist.jpg");
    background-attachment: fixed;
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
  }
}