.now-playing {
  width: min(480px, 100%);
  height: 152px;
  margin: 1.25rem auto 0;
}
.now-playing[hidden] { display: none; }
.now-playing iframe {
  display: block;
  width: 100%;
  height: 152px;
  border: 0;
  border-radius: 12px;
}