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<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Positioned Layout Test: element with 'position: sticky' and removing a sibling in the vertical axis and in the horizontal axis</title>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
<link rel="help" href="https://www.w3.org/TR/css-position-3/#sticky-pos">
<meta name="flags" content="">
<style>
div#scrollingContainerVert
{
background-color: red;
height: 100px;
overflow: auto;
width: 200px;
}
div#scrollingContainerHoriz
{
background-color: red;
height: 100px;
overflow-x: auto;
overflow-y: hidden;
width: 200px;
}
div#elemStickyVert
{
background-color: green;
height: 100px;
position: sticky;
top: 0px;
}
div#scrollingContainerHoriz > div
{
display: inline-block;
height: 100%;
}
div#elemStickyHoriz
{
background-color: green;
left: 0px;
position: sticky;
width: 200px;
}
div#tallItem
{
height: 600px;
}
div#wideItem
{
width: 600px;
}
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<p>Test passes if there is a filled green square and <strong>no scrollbar</strong>.
<div id="scrollingContainerVert">
<div id="elemStickyVert"></div>
<div id="tallItem"></div>
</div>
<div id="scrollingContainerHoriz">
<div id="elemStickyHoriz"></div><div id="wideItem"></div>
</div>
<script>
test(()=> {
scrollingContainerVert.scrollTop = 600;
tallItem.style.display = "none";
assert_equals(scrollingContainerVert.scrollHeight, 100);
}, "Sticky position and its overflow contribution in the vertical axis");
test(()=> {
scrollingContainerHoriz.scrollLeft = 600;
wideItem.style.display = "none";
assert_equals(scrollingContainerHoriz.scrollWidth, 200);
}, "Sticky position and its overflow contribution in the horizontal axis");
</script>
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