@media (max-width: 619.98px) {
  body {
    max-width: 100vw;
  }

  body main, img {
    max-width: 90vw;
  }

  .navbar {
    display: block;
  }

  nav a {
    line-height: 2rem;
  }

  .navbar li > a {
    font-size: 16px;
  }

  .navbar ul {
    max-width: 100vw;
    overflow: scroll;
  }
}