s don't work, the divs won't be square.
 */
div:nth-of-type(2) {
  background: orange;
  writing-mode: vertical-rl;
  text-orientation: upright;
  width: 5ch;
}
div:nth-of-type(1) {
  background: orange;
  height: 5ch;
  display: inline-block; /* shrinkwrap */
}
</style>
<body>
  <p>Test passes if there is a <strong>green square</strong> below, and if it is the <strong>same size as the blue</strong> one, not the orange one.
  <p>If any of the 3 colored shapes is not a square, or if the orange and blue squar