.ud-icon {
  display: flex;
}
.ud-icon.xlarge:before {
  font-size: 32px;
  line-height: 32px;
}
.ud-icon.large:before {
  font-size: 24px;
  line-height: 24px;
}
.ud-icon.medium:before {
  font-size: 16px;
  line-height: 16px;
}
.ud-icon.small:before {
  font-size: 8px;
  line-height: 8px;
}