#simple-bundles-io-options {
  display: flex;
  flex-direction: column;
}

#simple-bundles-io-options label {
  margin-bottom: 8px;
  font-weight: bold;
}

#simple-bundles-io-options select {
  padding: 8px;
  font-size: 16px;
  border-radius: 4px;
  border: 1px solid #ccc;
  width: 100%;
  margin-bottom: 8px;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url('data:image/svg+xml;utf8,<svg fill="%23444" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/><path d="M0 0h24v24H0z" fill="none"/></svg>');
  background-repeat: no-repeat;
  background-position: right 8px center;
}