#widget-container label {
  font-weight: 700;
}

#controls-container {
  margin: 0 auto;
  width: 90%;
}

#controls-container select {
  display: block;
  width: 100%;
}

#button-container button {
  margin: 5px;
}

#progress-container {
  margin: 0 auto;
}

.hidden {
  display: none;
}