@media screen and (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }

  .reset a,
  #dinnerForm input[type="submit"] {
    width: 50%;
    margin: 20px auto;
    padding: 10px;
  }

  #dinnerForm,
  .result {
    margin: 40px auto;
  }

  .result {
    font-size: 1rem;
  }
}