<!doctype HTML>
<style>
.c8 {-webkit-column-width: 1px; }
.c12 { content: no-close-quote; padding-right: 10px; }
.c12 { vertical-align: -10%; padding-bottom: 100%; }
.c18 { display: table-header-group; }
</style>
Passes if it does not crash.
<script>
var cell1 = document.createElement('td');
cell1.setAttribute('class', 'c8');
document.documentElement.appendChild(cell1);
var cell2 = document.createElement('td');
cell2.setAttribute('rowspan', '65536');
document.documentElement.appendChild(cell2);
span = document.createElement('span');
span.setAttribute('class', 'c12')
cell2.appendChild(span);
setTimeout(() => cell2.setAttribute('class', 'c18'), 0);
</script>