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<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Test: Border collapsed table with a dynamic <col> insertion</title>
<link rel="help" href="https://drafts.csswg.org/css-tables/#border-collapsing">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1652384">
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
<link rel="author" title="Mozilla" href="https://mozilla.org">
<link rel="match" href="border-collapse-dynamic-col-001-ref.html">
<style>
table {
border-collapse: collapse;
border-spacing: 0;
}
td {
padding: 10px;
border: 1px solid;
}
</style>
<table>
<colgroup>
<col>
<col>
<col>
</colgroup>
<tbody>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
<script>
document.querySelector("table").getBoundingClientRect();
// Insert a column at the second position.
var trs = document.querySelectorAll("tr");
var col = document.querySelector("col");
col.parentNode.insertBefore(col.cloneNode(true), col.nextSibling);
for (var i = 0; i < trs.length; ++i) {
var row = trs[i];
var firstCell = row.querySelector("td");
firstCell.parentNode.insertBefore(firstCell.cloneNode(true), firstCell.nextSibling);
}
</script>
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