.attribute_options input[type="radio"] {
  display: none;
}

.attribute_options label {
  display: inline-block;
  padding: 6px 14px;
  margin: 4px;
  border: 1px solid #ccc;
  border-radius: 9px;
  background: #fff;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s ease;
}

.attribute_options label:hover {
  border-color: #666;
}

.attribute_options input[type="radio"]:checked + label {
  background: #222;
  color: #fff;
  border-color: #222;
}

.attribute_options {
  display: inline-block;
  margin: 4px;
}