.diet-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background-color: #00457c;
  color: #ffffff;
  border-radius: 50%;
  font-size: 10px;
  font-weight: bold;
  letter-spacing: 0.1em;
  margin: 0 0 0 10px;
  /* ensure the two-letter icons stay the same size */
  text-transform: uppercase;
}