der: blue solid 1em;
      display: table-caption;
      height: 7em; /* Each line box has an inline-size of 7em */
      writing-mode: sideways-rl;
    }
  ]]></style>
 </head>

 <body>

  <div>A&nbsp; BBBB C&nbsp; D&nbsp; E F&nbsp; G&nbsp; H JJJJ&nbsp; K &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; L&nbsp; MMMM Q&nbsp; R&nbsp; S T&nbsp; U&nbsp; V WWWW&nbsp; X &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; YYYYYYY Z&nbsp; a&nbsp;&nbsp; b&nbsp; c&nbsp;&nbsp; ddddddd &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; eeee&nbsp;&nbsp; f&nbs