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<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:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-tables-3/#visibility-collapse-cell-rendering">
<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/#visibility-collapse-cell-rendering">Spec</a>
<p>
Setting a row to visibility:collapse changes table height but not width.
Here, the spanning cell is the only cell in its row.
</p>
<table id="one">
<tr id="spanningRowRef">
<td rowspan="5">B<br>B<br>B<br>B<br>B</td>
</tr>
<tr id="firstRowRef">
<td>aaaa</td>
</tr>
<tr>
<td>bbbb</td>
</tr>
<tr id="thirdRowRef">
<td>cccc</td>
</tr>
<tr id="fourthRowRef">
<td>dddd</td>
</tr>
</table>
Bottom table is identical to top except second row has been collapsed.
The spanning cell's height shrinks and is clipped.
<table id="two">
<tr id="spanningRow">
<td rowspan="5" id="spanningCell">B<br>B<br>B<br>B<br>B</td>
</tr>
<tr id="firstRow">
<td>aaaa</td>
</tr>
<tr id="secondRow" style="visibility: collapse">
<td>bbbb</td>
</tr>
<tr id="thirdRow">
<td>cccc</td>
</tr>
<tr id="fourthRow">
<td>dddd</td>
</tr>
</table>
This text should not intersect with the table.
</main>
<script>
tests = [
[
document.getElementById('two').offsetWidth,
document.getElementById('one').offsetWidth,
"spanning row visibility:collapse doesn't change table width"
],
[
document.getElementById('fourthRow').offsetHeight,
document.getElementById('fourthRowRef').offsetHeight,
"fourth row stays the same height"
],
[
document.getElementById('thirdRow').offsetHeight,
document.getElementById('thirdRowRef').offsetHeight,
"third row stays the same height"
],
[ document.getElementById('secondRow').offsetHeight,
0,
"spanning row visibility:collapse makes row height 0"
],
[
document.getElementById('firstRow').offsetHeight,
document.getElementById('firstRowRef').offsetHeight,
"first row stays the same height"
],
[
document.getElementById('spanningCell').offsetHeight,
document.getElementById('firstRow').offsetHeight +
document.getElementById('thirdRow').offsetHeight +
document.getElementById('fourthRow').offsetHeight,
"spanning cell shrinks to sum of remaining three rows' height"
]];
for (i = 0; i< tests.length; i++) {
test(function()
{
assert_equals.apply(this, tests[i]);
},
tests[i][2]);
};
</script>
</html>
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