input.form-radio[type="radio"] + label:before {
  display: none;
}

.webform-options-display-buttons input:checked + label.webform-options-display-buttons-label {
    color: #000;
    border-color: #6c757d;
}

.webform-options-display-buttons label.webform-options-display-buttons-label {
  display: block;
  padding: 10px;
  text-align: center;
  vertical-align: middle;
  color: #666;
  border: 2px solid #e9ecef;
  border-radius: 10px;
  background-color: #fff;
  height: auto;
}