  width: 150px;
  }

  span {
    display: block;
    background: lightgrey;
    border: 2px solid black;
    margin: 11px 13px 17px 7px;
    inline-size: 6px;

    /* This really floats to top ('logical left'), since all the containers
       have a vertical writing mode. */
    float: right;
  }

  .small { font: 12px Ahem; }
  .big   { font: 20px Ahem; }

  .hl  { writing-mode: horizontal-tb;  direction: ltr; }
  .hr  { writing-mode: horizontal-tb;  direction: rtl; }
  .vl  { writing-mode: vertical-lr;  