body {
  font-family: sans-serif;
  background: darkseagreen;
  color: #222;
}
@media (min-width: 600px) {
  body {
    margin: 2% 10%;
  }
}
.waveform {
  background: darkcyan;
}
.controls,
#track-template {
  display: none;
}

.track-info {
  display: flex;
  margin-bottom: 12px;
}
.track-artwork img {
  width: 240px;
  margin-right: 24px;
}
.controls {
  padding: 16px 0 6px 0;
}

.track-style,
.btn {
  background: #333;
  color: white;
  padding: 7px;
  border-radius: 6px;
  border: none;
  text-decoration: none;
  text-transform: uppercase;
  font-size: 12px;
}
.btn:hover {
  color: #333;
  background: white;
}

.track-style {
  position: relative;
  top: -5px;
  margin-left: 8px;
}

hr {
  border: none;
  border-bottom: 2px dotted darkcyan;
  margin: 32px 0;
}