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<!doctype html>
<meta charset="utf-8">
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
<link rel='stylesheet' href='support/base.css' />
<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-height">
<style>
table {
border-spacing: 0;
border-collapse: collapse;
}
table td {
border: 1px solid blue;
padding: 5px;
}
</style>
<main>
<h1>Visibility collapse</h1>
<a href="https://drafts.csswg.org/css-tables-3/#computing-the-table-height">Spec</a>
<p>
Setting a row to visibility:collapse changes table height but not width.
Here the spanning cell and another cell are in the same row.
</p>
<table id="one">
<tr id="firstRowRef">
<td>aaaa</td>
</tr>
<tr id="secondRowRef">
<td>bbbb</td>
</tr>
<tr id="collapsedRowRef">
<td rowspan="2">spanning</td>
<td>cccc</td>
</tr>
<tr id="fourthRowRef">
<td>dddd</td>
</tr>
<tr id="fifthRowRef">
<td>eeee</td>
</tr>
</table>
Bottom table is identical to top except third row has been collapsed.
<table id="two">
<tr id="firstRow">
<td>aaaa</td>
</tr>
<tr id="secondRow">
<td>bbbb</td>
</tr>
<tr style="visibility:collapse;" id="collapsedRow">
<td rowspan="2">spanning</td>
<td>cccc</td>
</tr>
<tr id="fourthRow">
<td>dddd</td>
</tr>
<tr id="fifthRow">
<td>eeee</td>
</tr>
</table>
</main>
<script>
tests = [
[
document.getElementById('two').offsetWidth,
document.getElementById('one').offsetWidth,
"spanning row visibility:collapse doesn't change table width"
],
[
document.getElementById('collapsedRow').offsetHeight,
0,
"collapsed row has zero height"
],
[
document.getElementById('firstRow').offsetHeight,
document.getElementById('firstRowRef').offsetHeight,
"first row height doesn't change"
],
[
document.getElementById('secondRow').offsetHeight,
document.getElementById('secondRowRef').offsetHeight,
"second row height doesn't change"
],
[
document.getElementById('fourthRow').offsetHeight,
document.getElementById('fourthRowRef').offsetHeight,
"fourth row height doesn't change"
],
[
document.getElementById('fifthRow').offsetHeight,
document.getElementById('fifthRowRef').offsetHeight,
"fifth row height doesn't change"
]];
for (i = 0; i< tests.length; i++) {
test(function()
{
assert_equals.apply(this, tests[i]);
},
tests[i][2]);
};
</script>
</html>
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