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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-position/sticky/position-sticky-table-tr-top.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>position:sticky top constraint should behave correctly for <tr> elements</title>
<link rel="match" href="position-sticky-table-tr-top-ref.html" />
<meta name="assert" content="This test checks that the position:sticky top constraint behaves correctly for <tr> elements" />
<script src="../resources/ref-rectangle.js"></script>
<style>
table {
border-collapse:collapse;
}
td {
padding: 0;
}
td > div {
height: 50px;
width: 50px;
}
.group {
display: inline-block;
position: relative;
width: 150px;
height: 200px;
}
.scroller {
position: relative;
width: 100px;
height: 150px;
overflow-x: hidden;
overflow-y: auto;
}
.prepadding {
height: 100px;
}
.postpadding {
height: 250px;
}
.indicator {
position: absolute;
background-color: red;
left: 0;
height: 50px;
width: 50px;
}
.sticky {
position: sticky;
top: 25px;
background-color: green;
}
</style>
<script>
window.addEventListener('load', function() {
document.getElementById('scroller1').scrollTop = 50;
document.getElementById('scroller2').scrollTop = 125;
document.getElementById('scroller3').scrollTop = 250;
createIndicatorForStickyElements(document.querySelectorAll('.sticky'));
});
</script>
<div>You should see three green boxes below. No red or blue should be visible.</div>
<!-- .sticky element not yet stuck -->
<div class="group">
<div id="scroller1" class="scroller">
<div class="indicator" style="top: 100px;"></div>
<div class="prepadding"></div>
<table>
<tbody>
<tr class="sticky"><td><div></div></td></tr>
<tr><td><div></div></td></tr>
<tr><td><div></div></td></tr>
<tr><td><div></div></td></tr>
</tbody>
</table>
<div class="postpadding"></div>
</div>
</div>
<!-- .sticky element stuck to top of .scroller -->
<div class="group">
<div id="scroller2" class="scroller">
<div class="indicator" style="top: 150px;"></div>
<div class="prepadding"></div>
<table>
<tbody>
<tr class="sticky"><td><div></div></td></tr>
<tr><td><div></div></td></tr>
<tr><td><div></div></td></tr>
<tr><td><div></div></td></tr>
</tbody>
</table>
<div class="postpadding"></div>
</div>
</div>
<!-- .sticky element pushed as down as possible to table edge -->
<div class="group">
<div id="scroller3" class="scroller">
<div class="indicator" style="top: 250px;"></div>
<div class="prepadding"></div>
<table>
<tbody>
<tr class="sticky"><td><div></div></td></tr>
<tr><td><div></div></td></tr>
<tr><td><div></div></td></tr>
<tr><td><div></div></td></tr>
</tbody>
</table>
<div class="postpadding"></div>
</div>
</div>