.nova-recorder {
  max-width: 420px;
  padding: 15px;
  border: 1px solid #ddd;
  background: #fafafa;
}
.nova-record-btn {
  padding: 8px 14px;
  cursor: pointer;
}
.nova-timer {
  margin-left: 10px;
  font-weight: bold;
}
.nova-wave {
  width: 100%;
  margin: 10px 0;
  background: #fff;
}