gecko-dev/layout/generic/crashtests/1563131.html

<style>
#c {
  margin-right: 24vmin;
}
#b {
  column-count: 1;
  max-width: 18%;
  writing-mode: tb;
}
#a {
  translate: 0px 9px 0px;
  white-space: pre-line;
}
</style>
<fieldset id="a">
<fieldset id="b">
<select id="c">a</select>