
    scrollbar-width: thin;
  }
</style>
<script>
  function performTest() {
    setup({ explicit_done: true });

    // ltr

    test(function () {
      let container = document.getElementById('container_auto');
      let content = document.getElementById('content_auto');
      assert_equals(container.scrollWidth, 200, "auto scrollWidth");
      assert_equals(container.clientWidth, 200, "auto clientWidth");
      assert_equals(container.offsetLeft, content.offsetLeft, "auto offsetLeft");
      assert_equa