@media only screen and (max-width: 768px) {
  body {
    width: 98%;
  }

  #banner {
    height: 180px;
    background-position: bottom right;
  }

  #page {
    clear: both;
  }

  #content {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    padding: unset;
  }
}