chromium/third_party/blink/web_tests/external/wpt/css/CSS2/floats/crashtests/firefox-bug-1904421.html

<!-- Quirks mode -->
<style>
.a {
  float: left;
}
:not(tfoot) {
  column-width: 0;
  border-top: 41px dashed -moz-activehyperlinktext;
}
</style>
<br class="a"></br>
<map>
<form class="a"></form>
<ol class="a">