.product-subtitle__headline {
  font-size: 18px;
  margin: 30px auto;
  box-sizing: border-box;
  border-radius: 4px;
  max-width: 750px;
}

@media (max-width: 768px) {
  .product-subtitle__headline {
    font-size: 14.4px;
    margin: 10px auto;
  }
}