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<!doctype html>
<meta charset="utf-8">
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
<link rel="author" title="Joy Yu" href="mailto:joysyu@mit.edu">
<link rel="help" href="https://drafts.csswg.org/css-tables-3/#computing-the-table-width">
<style>
td {
padding: 0;
}
</style>
<h1>Visibility collapse</h1>
<a href="https://drafts.csswg.org/css-tables-3/#computing-the-table-width">Spec</a>
<p>
Setting a spanning column to visibility:collapse changes table width but
not height. The right two columns here have been collapsed.
</p>
<table id="test" style="border-collapse: collapse;">
<colgroup>
<col style="background:#00F"/>
<col span="2" style="background:#F00; visibility: collapse"/>
</colgroup>
<tbody>
<tr>
<td><div style="width: 100px; height: 100px"></div></td>
<td><div style="width: 10px; height: 10px"></div></td>
<td><div style="width: 1px; height: 1px"></div></td>
</tr>
<tr>
<td><div style="width: 100px; height: 100px"></div></td>
<td><div style="width: 10px; height: 10px"></div></td>
<td><div style="width: 1px; height: 1px"></div></td>
</tr>
</tbody>
</table>
<script>
tests = [
[
document.getElementById('test').offsetHeight,
200,
"col visibility:collapse doesn't change table height",
],
[
document.getElementById('test').offsetWidth,
100,
"col visibility:collapse changes table width"
]];
for (i = 0; i< tests.length; i++) {
test(function()
{
assert_equals.apply(this, tests[i]);
},
tests[i][2]);
};
</script>
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