quirks_percent_ortho_ng_boundary.html

<body id=theBody style="overflow:hidden;width:500px">
  <div id=mine2 style="writing-mode: vertical-lr; border:1px solid orange;">
    <table id=mine bgcolor="red" width="100%" cellpadding="0" cellspacing="0">
      <tr>
        <td id=cell style="height:100px;background-color:lightgreen">table</td>
      </tr>
    </table>
  </div>
  <div style="writing-mode: vertical-lr; border:1px solid orange;">
    <div style="display:flex; width:100%; height:50px;background-color:lightblue">flexbox</div>
  </div>
  <br><br>
  Resize the window and these will get wider. <br><br>overflow:hidden, quirks mode and ortho writing mode seem to be necessary.
</body>