<style>
  span {
    display: table-cell;
  }
  :not(span) {
    float: left;
  }
  ::first-letter {
    width: 0;
  }
  :first-child {
    -webkit-user-select: none;
  }
</style>
<script>
  onload = () => {
    document.execCommand('SelectAll');
    document.designMode = 'on';
    document.execCommand('InsertText', false, 'aa');
    document.execCommand('InsertOrderedList');
    document.execCommand('CreateLink', false, '#xyz');
    document.execCommand('JustifyFull');
    document.execCommand('CreateLink', false, '#');
    document.write("PASS");
    if (window.testRunner)
        testRunner.dumpAsText();
  };
</script>