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<!DOCTYPE html>
<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<html>
<meta charset="utf-8">
<title>CSS Overflow Test: Testing an empty child box and its container's scrollable overflow area</title>
<link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
<link rel="author" title="Mozilla" href="https://www.mozilla.org/">
<link rel="help" href="https://drafts.csswg.org/css-overflow-3/#scrollable">
<meta name="assert" content="This test verifies that an empty child box shouldn't contribute to its parents scrollable overflow area.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<style>
.container {
border: 1px solid black;
width: 200px;
height: 100px;
}
.empty {
position: relative;
width: 0px;
height: 0px;
left: 500px;
top: 300px;
box-shadow: 0 0 0 10px blue;
}
</style>
<body onload="checkLayout('.container')">
<p>You should see no scrollbars in these container because an empty child
box shouldn't contribute to its parents scrollable overflow area. </p>
<div class="container" style="overflow: visible"
data-expected-scroll-width="200" data-expected-scroll-height="100">
<div class="empty"></div>
</div>
<div class="container" style="overflow: auto"
data-expected-scroll-width="200" data-expected-scroll-height="100">
<div class="empty"></div>
</div>
<div class="container" style="overflow: hidden"
data-expected-scroll-width="200" data-expected-scroll-height="100">
<div class="empty"></div>
</div>
<div class="container" style="overflow: clip"
data-expected-scroll-width="200" data-expected-scroll-height="100">
<div class="empty"></div>
</div>
</body>
</html>
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